Thursday, December 29, 2016

Automotive Micro Motor Market Research Report Now Available at Research Corridor

Research Corridor has published a new research study titled “Automotive Micro Motor Market – Growth, Share, Opportunities, Competitive Analysis and Forecast, 2015 – 2022”. The Automotive Micro Motor market report studies current as well as future aspects of the Automotive Micro Motor Market based upon factors such as market dynamics, key ongoing trends and segmentation analysis. Apart from the above elements, the Automotive Micro Motor Market research report provides a 360-degree view of the Automotive Micro Motor industry with geographic segmentation, statistical forecast and the competitive landscape.
Geographically, the Automotive Micro Motor Market report comprises dedicated sections centering on the regional market revenue and trends. The Automotive Micro Motor market has been segmented on the basis of geographic regions into North America, Europe, Asia Pacific and Rest of the World (RoW). The RoW segment consists Latin America and the Middle East & Africa. The Automotive Micro Motor market has been extensively analyzed on the basis of various regional factors such as demographics, gross domestic product (GDP), inflation rate, acceptance and others. Automotive Micro Motor Market estimates have also been provided for the historical years 2013 & 2014 along with forecast for the period from 2015 – 2022.
The research report also provides a comprehensive understanding of Automotive Micro Motor market positioning of the major players wherein key strategies adopted by leading players has been discussed. The Automotive Micro Motor industry report concludes with the Company Profiles section which includes information on major developments, strategic moves and financials of the key players operating in Automotive Micro Motor market.

Holden teases trio of limited edition Commodores ahead of January reveal

Hard-core Holden fans shouldn't take holidays in January.
The Aussie car maker has just released details of a micro-site that confirms a trio of limited edition Commodores will be sold in 2017 to mark the final year of local production for the iconic muscle car.
The site (www.holden.com.au/cars/commodore/limited-edition) is due to go live this afternoon (Thursday December 15) and features three vehicles under cover with confirmation they are based on the SS-V Redline sedan and ute and the Calais V sedan. It asks for expressions of interest from customers wishing to secure a piece of motoring history.
While Holden has yet to reveal official details of the models, the main image showcases a black set of alloy wheels featuring a unique red ring around the outer edge of the rim, a matching red highlight on the lower portion of the front intake and a black bonnet vent on another vehicle in the foreground.
Reports have suggested Holden will dip into its back catalogue and revive badges such as Director and Magnum - previously used on HDT Special Vehicles models back in the 1980s - as a celebration of the Commodore's performance heritage.
The original HDT Director was created by Holden hero Peter Brock to be considered among the most luxurious sports sedans of its time. It featured a unique independent rear suspension system, upgraded V8 engine and a high-grade interior that even included a portable phone and fax machine, which was at the absolute cutting edge of connectivity back in 1987.
But it was also fitted with the controversial Energy Polariser - a box of crystals that Brock claimed improved performance and reduced fuel consumption - that ultimately led to Holden dumping its Bathurst legend.
HDT also used the Magnum name on a high-performance version of the WB Caprice limousine or one-tonne ute.
Accordingly, it is expected the Director name could be used on the more luxury-focused Calais V (without a Polariser) while the Magnum could be reserved for the ute. It has been suggested that the third model will be a track-focused variant of the SS-V Redline sedan that has been created to pay homage to the Commodore's vast successes in motorsport over the last 38 years, from its 24 Bathurst victories to the Repco Round Australia Reliability Trial win and the King's Cup crown in the 1986 FIA Touring Car Championship.
Holden promises to reveal the official information in January, the day the vehicles are expected to be officially on-sale to the public. Commodore fans should save the date...

Friday, December 23, 2016

YY® Drahtlose Schnurlose LED Polymerisationslampe Eigenschaften

YY® Drahtlose Schnurlose LED Polymerisationslampe Eigenschaften

YY® Drahtlose Schnurlose LED Dentale Polymerisationslampe 2000mw

Polymerisationslampen Eigenschaften:
- Importierte Hochleistungs-LED und vier innere Chips.
- Ausgangswellenlänge von Blu-ray:430-485nm.
- Allmählich hell, glänzend, hell-weit, die Arbeit von drei Modellen zu wählen.
- Das Ausgangstiming von drei Getriebe:4s, 6s, 8s.
- Blu-ray Beleuchtung: 10W≥2000mw/cm2
- Die Wirkung von Aushärtungszeit:6s: 2-3mm.
- Jede Marke kann Harzmaterial aushärten.
- Drei Leistungsoptionen: Art A: Li-Ion Batterieenergie: Art B: AC110-240V Energieversorgung, Art C: AC24V Energie
- Zuverlässige Struktur und einfache Bedienung
- SKU: YY-B-10W-S US  YY-B-10W-S EU

Technische Daten
- Eingangsleistung: 10W
- Spannungsbereich der Ladung: AC 110-250V, 50-60HZ
- Das Ausgangstiming von drei Getriebe: 4s, 6s, 8s
- Lithium Batterie: 3.7V, 2200mah
- Wellenlängenbereich: 420-485nm
- Lichtleistung: 2000mw/cm2
- Farbe: silber/rot/blau/schwarz

LED-Polymerisationslampe zahnarzt PenCure

Tuesday, December 20, 2016

Key Opportunity & Application 2016 on Global Micro-Motor Market

Global Micro-Motor Industry Market Research 2016

Deerfield Beach, FL -- (SBWIRE) -- 11/28/2016 -- The Global Micro-Motor Industry 2016 Market Research Report is a professional and in-depth study on the current state of the industry.The review has been based on the report titled, " Micro-Motor Market - Industry Analysis, Size, Share, Growth, Trends and Forecast, 2016 - 2020." 

Global Micro-Motor Market
 

Firstly, Micro-Motor Report provides a basic overview of the industry including definitions, classifications, applications and industry chain structure. The market analysis is provided for the international market including development history, competitive landscape analysis, and major regions' development status.

Request for Sample Report @ http://www.marketresearchstore.com/report/global-micro-motor-industry-market-research-2016-59796#RequestSample

Secondly, Micro-Motor Report provides development policies and plans are discussed as well as manufacturing processes and cost structures. This report also states import/export, supply and consumption figures as well as cost, price, revenue and gross margin by regions (United States, EU, China and Japan), and other regions can be added.

Then, the Micro-Motor report focuses on world major leading industry players with information such as company profiles, product picture and specification, capacity, production, price, cost, revenue and contact information. Upstream raw materials, equipment and downstream consumers analysis is also carried out. What's more, the industry development trends and marketing channels are analyzed.


Finally, the feasibility of new investment projects is assessed, and overall research conclusions are offered on Worldwide Micro-Motor Market 2016 Report .

Monday, December 19, 2016

Instruction on Micro motor developed to treat strokes

An Australian research team has created a motor that is so small it can be driven through the arteries of the brain.The motor is about the size of a grain of salt and is said to have the equivalent power of a small kitchen appliance.It is invisible to the naked eye.The current technology is a fixed tube that feeds a catheter to the site of a stroke, but when it is powered by the new motor doctors will be able to steer the catheter.
Micromotor developed to treat strokes

Associate Professor Bernard Yan of the Royal Melbourne Hospital's neuro-intervention service is hoping to use the micro-motor to treat strokes and aneurisms.
"At this stage we are targeting the arteries of the brain," he said."But of course there is no reason why this cannot be applied to other parts of the body such as the heart, kidneys or other organ systems."The project is a collaboration between RMIT University and the Royal Melbourne Hospital.It was developed by senior research fellows at RMIT University, Professor James Friend, fellow RMIT University Professor Leslie Yeo and Associate Professor Yan.

Associate Professor Yan says there is a drastic need to improve surgical equipment used to treat stroke victims.He says problem with the current technology has been likened to trying to feed a "half-boiled piece of spaghetti" through a wet paper tube."It is intensely frustrating when, in the heat of the moment you know you are racing against time," he said."There's a time window beyond which there will be no chance of saving that patient."And when you come across about 40 per cent of cases which are difficult and about 15 per cent of cases that are downright impossible, it's very disheartening."

Associate Professor Yan says the device will be particularly helpful for surgeons treating older patients."Arteries undergo wear and tear over time. So with the younger patients, the 20-year-olds, their arteries are fairly straight and easy to get to," he said."[But] for example in the 80-year-olds, the arteries are as windy as the Great Ocean Road."It provides two components. It provides more power to enable the catheter to get to where we want it to get to, but it allows us manoeuvrability."The motor is currently undergoing intense laboratory testing and is not expected to be given approval for use in surgery until at least 2016.When it does, it is expected to reduce the rate of cases in which surgeons are unable to operate, from 15 per cent, to less than 5 per cent.

Topics: medical-research, science-and-technology

Wednesday, November 9, 2016

Strong 90 Micro Motor STRONG 90 by Saeshin (Korea)

STRONG 90 by Saeshin (Korea)


Strong 90 Micro Motor STRONG 90 by Saeshin (Korea)


Reliable and well designed to output up to 0-35,000rpm by using nonstage speed system. Compact design motor (carbon brush) with less vibration, Right/Left turning ability and On/Off switch.

Parts:

    High Speed 35000 rpm Handpiece (102)
    Foot Pedal Switch
    Control Box Main machine
    Spare Carbon Brushes
    Wrench
    Operation Manual

With 6 months factory warranty for Hobby use (handled from our office), it is also great value.  Stronger than a battery operated Dremel type machine, this one can handle your job with ease.

Suitable for any standard 2.35mm/3/32" attachment.  A great machine for Gem cutting, Gem polishing, Jewellery making and setting, all woodwork, carving, metalwork, engraving - it's versatile!

http://www.gemcuts.com.au/micro-motors

Tuesday, November 8, 2016

The world's smallest and most powerful micro motor

Piezoelectric ultrasonic motors have two significant advantages, namely their high energy density and their simple structure, which both contribute to their miniaturization. We have built a prototype micro ultrasonic motor using a stator with a volume of approximately one cubic millimeter. Our experiments have shown that the prototype motor generates a torque of more than 10 μNm with a one cubic millimeter stator. This novel motor is now the smallest micro ultrasonic motor that has been developed with a practical torque.


Unveiling of the world's smallest and most powerful micro motors

Micro actuators are needed for numerous applications, ranging from mobile and wearable devices to minimally invasive medical devices. However, the limitations associated with their fabrication have restricted their deployment at the one-millimeter scale. The most common electromagnetic motors require the miniaturization of many complicated components such as coils, magnets, and bearings, and exhibit severe torque dissipation due to the scaling. Electrostatic motors enable excellent scalability by using microelectromechanical systems (MEMS) technology, but their weak driving force has limited their further development.

According to Mashimo, "The simplicity of the stator structure enabled the miniaturization without having to use any special machining process. This prototype stator is much simpler than those of other existing ultrasonic motors."
The next goal of this research is to improve the values of performance parameters for practical applications, such as energy efficiency and lifetime. In future, the proposed micro motors may actuate micro forceps embedded in endoscopes for safe and less-invasive operations.


https://community.smartthings.com/t/aeon-micro-motor-controller-dsc14104/15615

Friday, October 28, 2016

2016-2020 Global and China Micromotor Industry Report

Global micromotor output stood at 17.5 billion units in 2015, a year-on-year increase of 4.8%. Thanks to campaigns to modernize the industry and equipment, the output is expected to rise to 18.4 billion units in 2016 and approach 23 billion units in 2020.

China, the world's largest manufacturer of micromotors, produced 12.4 billion units in 2015, up 6.0% from a year ago, and accounting for 70.9% of the global total. The country's micromotor output is predicted to be close to 17 billion units in 2020 at a CAGR of around 7.0% during 2016-2020.

Keymicromotor manufacturers in China includeJohnson Electric, Welling Holding Limited, Zhongshan Broad-Ocean Motor Co., Ltd., and Wolong Electric Group Co., Ltd. Johnson Electric, as the largest micromotor manufacturer in China, achieves annual revenue of over USD1 billion, with a global market share of 4.3% in 2015.

In China, micromotor finds its application primarily in traditional fields, such as audio products, household appliances, and automobile, which held a combined proportion of 52.4% in 2015. As traditional application markets gradually grow saturated, main drivers of micromotor growth will be emerging sectors like new energy vehicle, wearable device, robot, UAV, and smart home.

Information Industry: China's shipments of VCM for mobile terminals were 542kk in 2015, up 12.9% year on year, occupying 45.9% of the world's total, largely driven by smartphones and tablet PCs. With gradual saturation of the markets for traditional consumer electronics like smartphone and tablet PC, wearable devices will become a new growth area, further boosting demand for micromotor. The Chinese wearable device market is predicted to expand at annual growth rate of over 25%.

Automobile: In 2015, China's demand for automotive micromotor was 1.02 billion units (24.9% of the global total, expected to rise to 1.62 billion units in 2020), less than 3% coming from new energy vehicle. New energy vehicle sales grew at a compound annual rate of 152.1% during 2011-2015 in China and, with the support of national and local policies, will maintain the strong growth momentum over the next couple of years. It is estimated that the market of micromotors for new energy vehicle will keep going up by over 40% annually during 2016-2020 with the demand exceeding 150 million units in 2020.

Robot: 248,000 industrial robots and 6.41 million service robots were sold globally in 2015, up 8.3% and 35.7% from a year earlier, respectively, together creating a demand of about 66.6 million micromotors (an estimate of more than 300 million units in 2020). In 2015, China accounted for 22.9% of the world's industrial robot sales and only about 5.0% of service robot sales, indicating a huge space for growth.

Consumer-grade UAV: In 2015, global consumer-grade UAV sales exceeded 200,000 units, compared with only less than 20,000 units in China. As low-altitude airspace is gradually opened, the Chinese UAV market will usher in a period of rapid growth at a rate of over 50%.

In addition, the new markets for 3D printing, smart home, medical equipment, and automation laboratory supported by policies will also kick into high gear, further driving the demand for micromotors.

Global and China Micromotor Industry Report, 2016-2020 highlights the followings:
Global micromotor industry (development history, market size, market structure, competitive landscape, etc.);
Micromotor industry in China (status quo, market size, market structure, competitive landscape, imports & exports, etc.);
Main upstream industries (magnetic materials, bearing, etc.), involving market size, market structure, development trends, etc.;
Downstream industries (information, automobile, household appliance, robot, UAV, 3D printing, smart home, medical equipment, etc.), involving application and market;
11 Global and 10 Chinese micromotor manufacturers (operation, micromotor business, development in China, etc.).
Read the full report: http://www.reportlinker.com/p04170496-summary/view-report.html

Thursday, October 27, 2016

High Speed Rotary Polishing Micromotor Kit K.1070

Use Product Options Menu to Select Collet Size: 2.35mm (3/32") (K.1070) or 1/8" (K.107018).


High Speed Rotary Polishing Micromotor Kit K.1070

For high speed micro motor applications up to 38,000 rpm including light deburring of cast pieces, bright cutting in jewelry making and fine detailing in wood. Kit includes control box, handpiece with 2.35mm (3/32") or 1/8" collet (depending on choice of collet installed), variable speed foot control, handpiece cradle, spare pair of motor brushes, spare fuse and collet changing wrenches. The back of the control box has a convenient Voltage Selector switch for operating with either 115 or 230 Volt operation. This Kit is already set for 110-115 Volt use. The control converts AC current to DC current required for the handpiece. Compared to flexible shaft machines, micromotors have less torque, however, their higher speed results in a comparable rate of material removal with a lighter touch. The simple cord connection between the handpiece motor and control box is another key advantage. Unlike the "drag" and general restriction in movement that you have with a shaft and sheath, micromotors offer much greater freedom of movement.
Kits K.1070 and K.107018 include:

HP4-917 Control Box
H.MH-170 Handpiece with 2.35mm (3/32") Collet installed OR  H.MH-17018 Handpiece with 1/8" Collet installed
HP4-960 Variable Speed Foot Control
HP4-933 micromotor handpiece Cradle
Spare pair of motor brushes, spare fuse, collet changing wrenches.
HP4-917 Control Box is compact with switches on the front for On/Off Power, Forward or Reverse Rotation, and Manual or Foot Speed Control. Speed can be adjusted from low to full speed using the dial on the box or with the foot pedal. An Overload Protector Light is also featured that turns red and sounds a beeping alarm when the motor stalls. This is the same control unit that comes in Micromotor Kits K.1020, K.1080 and K.1090.

H.MH-170 or H.MH-17018 High Speed Rotary Handpiece has a slender, contoured grip for precise and very high speed work and quick release rotary type chuck. It has a fan cooled, brush-type continuous duty motor that runs cool and vibration free with permanently lubricated, shielded ball bearings that require no lubrication. H.MH-170 comes with installed with a 2.35mm (3/32") collet and H.MH-17018 comes with installed with a 1/8" collet. Collets are easy to install and change with supplied collet changing wrench.
Optional collets are available separately. Bur changes are quick and easy with a simple twist of the front section of the Handpiece. A cradle is also supplied for the handpiece when not in use. A selection of collet adapters is available for simplifying changes between accessories with different shank sizes.
Handpiece specifications: 6.2" overall length, 5/8" grip diameter, 1" motor diameter, 7.3 oz./208 gr., DC30V/1.2A. CE marked.

Tip:
Consider purchasing a separate "Collet Adapter" that fits inside the handpiece collet and allows the use of smaller shank size accessories without having to actually change the collet. We offer five sizes of adapters that fit in all of our micromotor handpieces except the hammer and chuck styles. See related products below.

Related products:MICRO-NX® Portable Micro Motor M1 25,000rpm


Saturday, June 4, 2016

Is The Curing Light Dangerous Or Harmful To Look At?

The dental curing light is a very strong blue light.  It it not a laser or a UV light so it will not cause any damage to your teeth or gums.  The only danger is if you look directly at the light for too long.  Similar to how your eyes will hurt if you look at the sun for too long.  Dentists and assistants are advised not to look at the light for long periods of time.

There are two types of curing lights used by dentists.  There is a halogen curing light and an LED curing light.  Most modern curing lights are LED as they do not overheat like the halogen curing lights do.  The only danger with the halogen light is that the heat it produces could potentially hurt the pulp of the tooth or the soft tissues in the mouth.  Although this is possible, it is very unlikely.  The majority of dentists use LED curing lights these days.

What Does The Orange Shield Do?
The orange shield is a filter so that your dentist and assistant can still look in your mouth without the strong blue light hurting their eyes.  The light is okay to look at for a few seconds but it’s not nice for dental staff to look at for too long.

What Is The Blue Curing Light Dentists Use And Is It Dangerous?
Have you noticed the glow of a blue light during your dental visits?  People often wonder what this light is for used for and whether it’s dangerous or not.  The blue light is called a curing light and it is used for setting white fillings.

What Does The Blue Light Do?
The blue light sets fissure sealants, fillings and cement in a matter of seconds.  When fillings are placed in the tooth they are very soft so they can be moulded to the correct shape by the dentist.  When the dentist is happy with the shape of the filling they will set it with this light.  The blue light makes the filling go rock hard and strong enough to chew on.  The blue light is also used when having braces fitted to set the cement which holds the brackets on your teeth.

Related Articles:

Making Full Use of Proper Curing Light
Real Reviews On Densit Curing Light

Friday, May 27, 2016

10 Interesting Things About the Dentist’s Hanpieces

Ten Interesting Facts About the Dentist’s Drill


1.There are two main types of dental drills: the high speed handpiece and the slow-speed.  The high-speed drill rotates around 250,000 RPM.  That means it spins around more than 4,000 times each second!

Even the relatively slow dental drill rotates at about 8,000 RPM.  By comparison, this DeWalt Drill is three times slower with a top speed of 2,500 RPM.

2 .After using the dental drill on your tooth for 30 seconds, your dentist is subjected to as much bacteria as they would be had you sneezed right in their face (Source).  That’s one of the reasons most dentists wear face masks.

3 .The high-speed dental drill shoots out water as it spins, as you can see in the photo above.  If it didn’t, the friction would cause your tooth to get so hot during a filling that it could possibly damage the nerve inside your tooth.

4.Many dentists now refer to the dental drill as a low speed handpiece to make it seem more friendly and enticing.

5 .The dental drill has to withstand the rigors of sterilization after every use, which means it gets heated to 250° Fahrenheit with pressurized steam for at least 15 minutes.

6 .The very first dental drill appears to have been a bow drill used by an ancient civilization about 9,000 years ago.

7 .The drill bits that dentists use are made of tungsten-carbide.  Some have blades to cut teeth, like in the photo below, and others are coated with diamonds to give a sandpaper-like smoothing effect (see photo below).

8 .As recently as the early 20th century, many dentists used drills that were powered by a pedal that the dentist would pump with his foot.

9 .The distinct shrill sound that the high-speed dental drill makes can be a major factor in people’s fear of the dentist.  Even for those who don’t have dental fear, the dental drill’s noise can be very unpleasant.

10 .Dental drills can be expensive, with many costing over $1,000.  That’s a lot more expensive than your average home-improvement drill.

Saturday, May 7, 2016

Eight Dental Care Tips for Moms

Moms deserve to be celebrated every day, so if you are a mom, 1-800-DENTIST thinks it's time to give yourself a gift that lasts a lifetime - the gift of dental health.

Here at 1-800-DENTIST, we understand that busy moms don't always believe they have the time to take great care of their teeth. But it shouldn't be that way. By giving your teeth the attention they need - just like you do for your family - you can help preserve your smile for decades.(dental ultrasonic scaler)

1-800-DENTIST has put together 8 dental care tips just for moms (and moms-to-be):

1. Brush twice a day for 2 minutes - You need all of that time to thoroughly remove plaque!

2. Brush properly  - Brush too hard and you might hurt your gums. For teeth brushing tips, check out our article on how to brush.

3. Floss every day - This is the best way to remove plaque and prevent cavities from forming between teeth.

4. Load up on fruits & veggies - Sweets promote tooth decay and gum disease. But fresh fruits and veggies are great for your overall health and your teeth!

5. Bust a move - Diet and exercise may help prevent periodontal disease, according to the Journal of Periodontology. Who knew?

6. Take time to de-stress - Stress can lead to teeth grinding, cause TMJ and trigger canker sore and cold sore outbreaks. Try yoga, meditation or other relaxation techniques to take the edge off.

7. Visit your dentist - You wouldn't let your kids miss a dentist appointment, so why should you? If you're pregnant, it's important to continue with regular dental exams.

8. Be model mom - Your kids look up to you. Dentists know that mothers who make dental health a priority in their own lives set a good example for their kids.

See more:
http://www.oyodental.com/

Friday, April 15, 2016

Signs and Symptoms of Periodontal Gum Abscess

1.    Periodontal gum abscess is commonly associated with periodontal pocket which can either be infrabony periodontal pocket or can be suprabony periodontal pocket.
2.    Tooth elevation and mobility may also be seen in case of periodontal gum abscess.
3.    In case of periodontal gum abscess, tooth is tender on lateral percussion.
4.    Pain in case of periodontal gum abscess is localized and patient can identify the offending tooth. Patient will feel pain and tenderness in the gums on chewing.
5.    Affected tooth may be vital or sometimes it is non-vital.
6.    Tooth with periodontal abscess may also be associated with fistula.
7.    Gums are inflamed, tender and swollen and will appear red and shiny
8.    Damage to the bone also occurs in case of periodontal gum abscess.
9.    From the gums of the tooth, pus drainage is there.
10.    Patient will have bad breath and bad taste in mouth in case of periodontal gum abscess.
11.    There is increased body temperature present. Along with that, lymph nodes are also swollen. endodontic motor




See more:
http://www.oyodental.com/

Wednesday, March 23, 2016

Generation of Changes of Dental Curing Light

Light-curing resin composites were introduced to restorative dentistry in 1969. The earliest light-cured materials were photopolymerized with ultraviolet light-polymerizing devices. This use of light curing ushered in an era of command set. When the light irradiated the restorative material, it initiated the setting-photopolymerization reaction of composite resins. The use of light curing paralleled the introduction of adhesive bonding of composites to enamel. These early curing lights had limited depth of cure due to the shorter wavelengths (10 nm to 380 nm) of UV radiation energy. In the mid-to-late 1970s, UV light-curing devices were phased out and replaced with visible light-curing devices using quartz-halogen bulbs (QTH) to light cure restorative materials that used photosensitive chemistries in the 460 nm to 480 nm wavelength, typically camphorquinone (CQ) for polymerization of composites.5 The longer wavelengths of this visible light spectrum allowed for a more penetrating curing light and light energy. This increased energy of photopolymerization introduced an era of improved physical properties with resin-based composites that were set by exposure to relatively safe, high-intensity light sources.

In the 1990s, there were significant improvements in best dental curing light devices. QTH devices had improvements that increased the energy to at least 6,000 mW/cm2, and in some cases using specialized turbo tips, more than 1,300 mW/cm2.2,6 At the same time, high-intensity light sources (a fluorescent bulb containing plasma) for resin-based composite curing and plasma-arc curing (PAC) with an irradiance range of 400 nm to 500 nm were introduced.6 A comparison of QTH- and PAC-cured composite resins demonstrated variation based on the composites and individual lights for different physical properties, but no one light type performed better than another.

A significant change in how resin-based composites were light cured occurred in the late 1990s, with the introduction of light-emitting diodes (LED) that provided light in the blue-visible spectrum with a range of 450 nm to 490 nm.8 Currently, the latest generation of LED curing devices provide consistent energy outputs of greater than 1,000 mW/cm2.2,9,10 The benefits of the latest generation of LED curing lights can include: higher, consistent light-energy output through emitter life; lightweight cordless features with rechargeable batteries; heat sink or quieter cooling fan; broader light spectrum with multiple LEDs for photopolymerization of resin-based composites with both CQ and other photoinitiators; and more useful light transmitted in ranges because of wavelength-specific emitters.

- See more at:http://www.oyodental.com/best-Dental-Curing-Light-for-sale.html

Friday, March 4, 2016

What are the factors that influence dental whitening process?

A primary reason results vary significantly is because many factors influence the whitening process. Some of these factors are controllable; some are not. And they may vary from system to system and person to person. Therefore, it is difficult to make claims that will satisfy the conditions of all those wanting a whiter smile. Primary factors include:
Color to start with – it is documented that those with more of a yellowish hue have greater response to whitening than those who have more gray or brown. Intrinsic gray discoloration is commonly seen in exposure to different types of medications. The most widely known is the antibiotic, tetracycline. Brown is often seen with excessive intake of fluoride, referred to as fluorosis. Fluorosis may also create a mottling or blotchy look to the enamel and make it equally difficult to achieve optimum results.
Unique and inherent whitening potential – it is believed that we each have a level at which our teeth cannot whiten any more.
Clean teeth – it is advised to have your teeth professionally cleaned to remove all deposits, as well as surface stain that may interfere with the whitening agent being in direct contact with the tooth.
Percentage of whitening agent – meaning the higher the concentration, the faster the results. However, the higher concentration can also result in a greater risk of sensitivity. Therefore, the percentage of whitening agent should be determined based on: how sensitive your teeth are to begin with; if you have any root surfaces exposed; the delivery system you choose and over what period you want results.  In-store or over-the-counter systems have a much lower whitening agent percentage, so it takes a little longer and may require more frequent touch-up. In-office systems provide a higher percentage, the alternative of using carbamide peroxide (teeth whitening machine for sale) and a more controlled application.
Duration of time – the whitening agent is in direct contact with the tooth surface. This is delivery-system sensitive as well. And it is related to the ratio agent. Each system requires a different timeline and should be followed accordingly. The key is to maintain direct contact with the entire tooth to provide even and precise whitening results.
Compliance – is easy when you choose a system based on your needs and concerns; when you use the system as directed and when you minimize risks. It is recommended to use an agent within neutral pH range. This is safer for the enamel and reduces sensitivity. Additionally, pay attention to all the factors that influence whitening and consult a dental professional with any concerns.
Oral habits – can play a major role in the whitening process. Before any application, it is a good idea to thoroughly brush and floss plaque, stain and food debris from the surfaces of the teeth. Maintaining good oral hygiene will keep your smile looking brighter longer.
Avoid – foods and drinks dark in color or that are acidic (tea, coffee, sodas, wine, grape juice, chocolate, orange juice), smoking and chewing tobacco. Beware of oral home care products that contain alcohol and dyes/colors or may be high in abrasion or acidity.

See more:
http://www.oyodental.com/blog/2016/03/04/what-are-the-factors-that-influence-dental-whitening-process/

Wednesday, February 10, 2016

How DO The Power Ultrasonic Scaler Work

The main action of power best dental ultrasonic scaler is mechanical; the high vibrational energy crushes and removes calculus. Other actions include: creating shockwaves that disrupt bacterial cells, or using turbulence to disrupt biofims, and irrigation — the therapeutic washing and flushing of the periodontal pocket and root surface with cooling water. Both power and hand scaling techniques require an experienced clinician with good tactile sensitivity (sense of touch) to remove deposits effectively and to promote healing.

Pros And Cons Of Power Driven Scalers
Research shows power scaling instruments have advantages:
They are as effective as manual instruments for calculus removal in shallow gum pockets and significantly more effective in pockets greater than 4mm.
They are very effective in disrupting biofilm from root surfaces and from within periodontal pockets making them especially helpful when patients require frequent maintenance (cleanings).
Specially designed tips can penetrate deeper into periodontal pockets than manual instruments and are more effective at cleaning difficult nooks and crannies like furcations, (areas where roots join each other in multi-rooted teeth).
When used correctly they are kinder to tooth structure, which is especially important with repeated cleanings (when used correctly).
Coolant sprays provide irrigation (flushing of the area), which improves healing by removing bacteria and their bi-products as well as the hygienist's ability to see when scaling.
They require less time than manual instruments for the same job.
Their smaller tips cause less tissue distention and require very little pressure — thus making it more comfortable for you, the patient!

Cautions Regarding Power Scalers
Aerosol production (the formation of contaminated “mist”) requires protective equipment; not a problem for experienced dental professionals.
Power scalers may affect certain cardiac (heart) pacemakers! Although most modern pacemakers are shielded, tell your dentist and/or hygienist if you have one.
Ultrasonic power scalers are not recommended for individuals with hypersensitive teeth, which may include primary teeth or newly erupted teeth. Please tell your dentist or hygienist if your teeth are sensitive to temperature change.
Ultrasonic scalers are also not recommended for areas of demineralization (early mineral loss leading to decay), porcelain or composite restorations and titanium implants — unless specially designed tips are used which won't scratch them.
Most periodontal experts today agree that the best results for non-surgical periodontal therapy are achieved by a blended approach; the combined use of power ultrasonic scalers and hand instruments. Rapidly changing technology has revolutionized periodontal therapy with integration of power scaling techniques resulting in improved clinical outcomes, patient comfort, and reduced time and physical demands on clinicians.

See more at: http://www.oyodental.com/

Sunday, February 7, 2016

An Overview of Current Technology OF Dental Handpiece

Electric Dental Handpiece are rapidly replacing traditional air-driven, high-speed handpieces in the US market. Industry estimates indicate that only 20% of practices employ an electric handpiece for restorative treatment, whereas in the European market over 80% of restorative practices are employing electric handpieces to prepare teeth for restorations. Practitioners who have tried electric handpieces become quick converts to the benefits of preparing a tooth for a crown with an electric handpiece.

Speed and Torque
Two factors to understand when comparing air-driven vs electric handpieces are speed and torque. Speed is expressed in revolutions per minute (rpm), whereas torque is expressed in watts and is an indication of the tool’s cutting power. Air-driven high-speed handpieces typically will have speeds between 250,000 and 420,000 rpm but the torque is relatively low, whereas an electric handpiece may have speeds around 200,000 rpm but relatively high torque. This implies that air-driven handpieces are faster than electric handpieces. However, when a bur in an air-driven handpiece contacts material to be cut, the speed will drop by as much as 40% or more (depending on the hardness of the material) because as resistance builds during cutting, the air pressure is insufficient to maintain the speed of rotation of the turbine. The harder the material being cut, the more resistance is created and the slower the bur spins. Our instinctive reaction is to place more pressure upon the bur to get it to cut the material, which increases resistance even further, creating a vicious circle.

An electric handpiece offers smooth, constant torque that does not vary as the bur meets resistance. With electric handpieces, the bur is connected through gears in the head of the handpiece to a central drive shaft that is physically turned by the motor. Because of the absence of air, these handpieces are quieter and the chance of air embolism in a surgical site is eliminated. Thus, the power output with electric handpieces is greater than with air-driven handpieces, offering 33 to 45 watts of cutting power. Because the speed and torque are constant, removing difficult crowns, bridges, and restorations becomes easier. Electric motors also offer accuracy by enabling the end user to set precise speeds for procedures, rather than the conventional “feathering” of the rheostat. Another difference between air and electric handpieces to consider is that in electric handpieces, power output is not dependent on head size. Some manufacturers offer smaller-head handpieces that may be beneficial in pedodontic applications or when operating in the posterior in confined spaces (Figure 1).

Cutting efficiency is actually a balance between the speed and torque delivered to the bur. A good way to demonstrate this is the “penny test.” Take a penny and grasp one end with a pair of locking hemostats to stabilize the penny. Next, using a carbide bur in the handpiece, cut a slot in the penny. Typically, the air-driven handpiece will bog down as it attempts to cut the slot and may stall as increasing pressure is placed on the bur. The electric handpiece will demonstrate smooth, even cutting without bogging down. This test is a good demonstration of how the handpiece may act clinically when preparing a tooth with an amalgam core or cutting a slot in a nonprecious crown to aid in its removal.
Understanding Gear Ratios
Electric handpieces will have a gear ratio imprinted on the handpiece which helps identify what procedures are best performed with that particular gear ratio. The ratio is expressed as X:Y, with a high-speed handpiece having a 1:5 ratio, and those intended for slow-speed procedures having a ratio expressed as 1:1. Some companies also offer handpieces for “ultra” slow-speed procedures such as pin placement or endodontics with a gear ratio of 10:1 or 16:1.
Typical procedures done with a high-speed (1:5) handpiece would be cavity preparation, crown preparation, and sectioning existing fixed prosthetics. These high-speed handpieces accept standard friction-grip burs or diamonds and push-button bur chucks. Slow-speed (1:1) handpieces would be indicated for caries removal, preparation refinement, and adjustment of ceramics. Depending on the manufacturer, slow-speed heads are available in either a friction-grip or latch-grip. The benefit of a friction-grip slow-speed head is any bur that can be used in a high-speed can be alternatively used in a slow-speed. Additionally, friction-grip burs typically retail for less than half the cost of latch-grip burs and diamonds are only offered in friction-grip applications.

Couplings and Connectors
Currently, all electric handpieces offer the standardized ISO coupling between motor and attachment (also called electric or universal coupling). The abbreviation for this universal electric connector is termed an “E” connector. The benefit of this is that most electric handpieces will fit any manufacturer’s motor. The exception is the Star Dental (Lancaster, PA) connector, which has a variation on the aligning tab used to line up the fiber optics that differs from the standard alignment tab. This variation presents as a round tab on the motor end and a corresponding round dimple on the handpiece. The standardized E connector that is used by other manufacturers presents with a rectangular depression on the motor with a corresponding tab on the handpiece. But before switching to a different brand of handpiece than the motor’s manufacturer, make sure that if the handpiece is lighted that the optics connection in the coupling will work with your current motor cable (Figure 2).
Sirona also offers a propriety connector in addition to its standard E connector. This connector places the motor deeper within the handpiece. Practitioners with smaller hands may find the balance more efficient (china dental supplier).

Warranties
Warranties can be confusing in terms of understanding what exactly is covered and for what period of time. Most handpiece companies will warrant the handpiece for at least 1 year. Warranties may be extended and the manufacturer should be contacted for further information on the details. Extended warranties often require use of that company’s lubricant and some require use of their particular lubricating unit.
One aspect to understand is the warranty on the handpieces optics. Current glass-rod technology (fused bundle) is very durable. Most manufacturers provide a 5-year warranty on the optics. Glass rods basically do not deteriorate under repeated sterilization cycles. However, if you drop the handpiece and the rod breaks, typically manufacturers will consider this a void in the warranty and the owner of the handpiece will need to cover any repair costs. Therefore, extended warranties on the glass rods is more or less a marketing tool.

- See more at: http://www.chinadentalsupplier.com/

Friday, February 5, 2016

The difference between a DC micro motor and servo micro motor

A DC motor has a two wire connection. All drive power is supplied over these two wires—think of a light bulb. When you turn on a DC motor, it just starts spinning round and round. Most DC motors are pretty fast, about 5000 RPM (revolutions per minute).

With the DC marathon micro motor, its speed (or more accurately, its power level) is controlled using a technique named pulse width modulation, or simply PWM. This is idea of controlling the motor’s power level by strobing the power on and off. The key concept here is duty cycle—the percentage of “on time” versus“off time.” If the power is on only 1/2 of the time, the motor runs with 1/2 the power of its full-on operation.

If you switch the power on and off fast enough, then it just seems like the motor is running weaker—there’s no stuttering. This is what PWM means when referring to DC motors. The Handy Board’s DC motor power drive circuits simply switch on and off, and the motor runs more slowly because it’s only receiving power for 25%, 50%, or some other fractional percentage of the time.

A servo motor is an entirely different story. The servo motor is actually an assembly of four things: a normal DC motor, a gear reduction unit, a position-sensing device (usually a potentiometer—a volume control knob), and a control circuit.

The function of the servo is to receive a control signal that represents a desired output position of the servo shaft, and apply power to its DC motor until its shaft turns to that position. It uses the position-sensing device to determine the rotational position of the shaft, so it knows which way the motor must turn to move the shaft to the commanded position. The shaft typically does not rotate freely round and round like a DC motor, but rather can only turn 200 degrees or so back and forth.

The servo has a 3 wire connection: power, ground, and control. The power source must be constantly applied; the servo has its own drive electronics that draw current from the power lead to drive the motor.

The control signal is pulse width modulated (PWM), but here the duration of the positive-going pulse determines the position of the servo shaft. For instance, a 1.520 millisecond pulse is the center position for a Futaba S148 servo. A longer pulse makes the servo turn to a clockwise-from-center position, and a shorter pulse makes the servo turn to a counter-clockwise-from-center position.

The servo control pulse is repeated every 20 milliseconds. In essence, every 20 milliseconds you are telling the servo, “go here.”

To recap, there are two important differences between the control pulse of the servo motor versus the DC motor. First, on the servo motor, duty cycle (on-time vs. off-time) has no meaning whatsoever—all that matters is the absolute duration of the positive-going pulse, which corresponds to a commanded output position of the servo shaft. Second, the servo has its own power electronics, so very little power flows over the control signal. All power is draw from its power lead, which must be simply hooked up to a high-current source of 5 volts.

Contrast this to the DC brushless micro motor. On the Handy Board, there are specific motor driver circuits for four DC motors. Remember, a DC motor is like a light bulb; it has no electronics of its own and it requires a large amount of drive current to be supplied to it. This is the function of the L293D chips on the Handy Board, to act as large current switches for operating DC motors.

Plans and software drivers are given to operate two servo motors from the HB. This is done simply by taking spare digital outputs, which are used to generate the precise timing waveform that the servo uses as a control input. Very little current flows over these servo control signals, because the servo has its own internal drive electronics for running its built-in motors.

Monday, February 1, 2016

Form des Arbeitsteils, Anwendungsgebiete und Drehzahlen

Stahl und Hartmetall

Nahezu alle Instrumentenformen stehen in unterschiedlichen Größen zur Verfügung, die nach ISO 2157 klassifiziert sind.


Eines der meisteingesetzten und vielseitigsten Instrumente ist der Rundbohrer, der auch als Rosenbohrer bezeichnet wird. Dieser sowie der Radbohrer, der umgekehrte Kegel, die Fissurenbohrer und weitere hier nicht abgebildete Stahl- oder Hartmetallbohrer werden zum Exkavieren (Entfernen oder „Ausbohren“ kariöser Zahnhartsubstanzen) eingesetzt, wobei Radbohrer und umgekehrte Kegel insbesondere dazu dienen, Unterschnitte zur Verankerung plastischen Füllungsmaterials zu präparieren. Aber auch Metalle und Kunststoffe können damit bearbeitet werden.

Diamanten
Diamanten sind dazu geeignet, auch den sehr harten Zahnschmelz zu bearbeiten. Sie dienen deshalb vor allem der Präparation von Füllungskavitäten und Zähnen zur Aufnahme von Kronen. Es sind Diamanten unterschiedlicher Körnung auf dem Markt. Damit kann z.B. ein Zahnstumpf vor der Abformung geglättet werden können. Viele Hersteller markieren die Körnung mit Farbringen.

Keramische Schleifkörper
Keramische Schleifkörper (rotierende instrumente dental) werden verwendet, um Werkstücke (besonders Modellgussprothesen und andere (Edel-)Metallarbeiten) auszuarbeiten und zu glätten. Sie stehen in unterschiedlicher Körnung zur Verfügung, die durch ihre Farbgebung zu erkennen ist. Auch natürliche Zähne und Zahnersatz lassen sich mit keramischen Schleifkörper gut bearbeiten, um z. B. die Okklusion zu korrigieren.


Elastische Polierer
Elastische Polierer (auch Gummipolierer genannt) werden als letzter Schritt bei der Ausarbeitung vor der Hochglanzpolitur mit Polierpaste eingesetzt. Das Werkstück kann dabei sehr heiß werden.

Ihre optimale Wirkung erzielen sie je nach Körnung und Werkstück bei einer Drehzahl zwischen 5.000 min−1 und 20.000 min−1.

Weitere Formen
Es gibt eine Fülle weiterer Formen für jedweden Zweck zahnärztlichen und zahntechnischen Arbeitens: Scheibenförmig, knospenförmig, birnenförmig, linsenförmig, flammenförmig, kelchförmig etc. Auch Mandrelle als Träger für (diamantierte) Trennscheiben und Schmirgelpapierträger sowie Filzkegel, Ziegenhaarbürsten und Leinenschwabbeln als Träger für Bimspulver und Polierpasten stehen zur Verfügung.



mehr sehen:
http://www.oyodental.de/

Sunday, January 31, 2016

Electric Micromotor Marathon Polishing N7 for Dental, Lab and Industry


SHIYANG 35000rpm Polishing Unit N7 + Handpiece Kit Fit MARATHON Micro Motor
Introduction:
Multipurpose electric marathon micromotor for dental, laboratory, jewelry,industry.
Good work for polishing, Cutting, milling, trimming, grinding, casting moulds or materials and finishing surface.
Dust seal protection for excellent durability
Simple and easy operation with variable foot pedal Control system.
Installed special ball bearings for super high speed(less heat and noise)
Another virtue is non-stage speed system (it's well designed to output from 0--- 35,000rpm by using non stage speed system)
Handpiece:Simple and easy operation (twist the handle counter-clock wise to change the bur and can be easily restored back to the original position)

Specifications:
1. Contral Unit Model: N7
2. Max.35, 000 rpm
3. Powerful control box
4. R.P.M: Handpiece Max
5. Portable and compact size
6. Protective metal cover
7. Non-stage speed dialing system
8. Continuous variable speed control
9. Forward & Reverse Switch
10.Optional Variable Control system foot pedal (Hand and foot control system can not be operated at the same time)
11. Safety protecting fuse
12. Automatic stop and resetting when overload is caused.
13. Available Voltage for worldwide users:
   220V/50Hz±10%
110V/60Hz±10%
14. One year warranty
brushless micro motor dental

Friday, January 15, 2016

Marathon Micromotor S05(N3S)Spécifications du fabricant

Marathon Micromotor S05(N3S)


Marathon Micromotor S05 Produktdetails:
1. Starkmotorisch 35.000 rpm
2. werkzeug-Austausch-Methode mit Nocken (drehen Sie den Griff gegen den Uhrzeigersinn um die bur zu ändern und es kann leicht wiederhergestellt und zurück auf die ursprüngliche Position gebracht werden).
3. Non einstufige System (es ist gut zur Ausgabe von Null auf 35.000 Umdrehungen pro Minute ausgelegt durch Verwendung von Non einstufigem System)
4. Recht & Links Drehfreudigkeit
5. Fuß ein/abschalten-Schalter-System
6. Es ist nicht nur für das Schleifen von Dentalmaterialien, sondern auch für das Schleifen, Polieren von Schmuck und feiner Holzindustrie und so weiter.
7. Fortschrittliche Motortechnik, für eine Vielzahl von Material-Bearbeitung.
8. Stetige variable Drehzahlsteuerung, den Schutz von Kunststoff-Schale; Schaltkasten mit starken, positiven und negativen Drehsinnschalter.
9. Fuß Geschwindigkeit / Fußschalter.


Technischedetails:
1.Power: 110V-220V Ausgangsspannung: 30V
2.Elektrischer Strom: 0.5A
3.Tipps Größe: 2,35 mm
4.Drehen Geschwindigkeit :0-35000

mehr sehen:Oyodental.de

Portable Micro Motor M1 25,000rpm Features

For this portable dental micro motor come with a carry case for Micro Motor Handpiece, so you can attach to your belt or strap around your waist. It's more convenient to operate!

Portable Micro Motor


Features

1. High Tech, nice design.
2. Easy to operate, with power charger.
3. Max peed: 25,000rpm
4. DC out A&B
5. Low noise, Low vibration.
7. No heat after long hours of operation by effective electrical design.
8. Denture processing, processing of jade jewelry, for nail, stone carving, wood carving.


Specification
Voltage: 110V/ 220V
Output Power: DC 0-30V
Weight: 1.0KG
Collet size: 2.35 / 3.0 / 3.175(mm)


Package With


Control box
Stand Along Handpiece