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Part 7 Chapter 35
Dental Handpieces and Accessories
| Question & Term | Answer & Definition |
|---|---|
| Dental handpiece | An electrical instrument used to hold rotary instruments |
| Burs | A steel or tungsten carbide rotary cutting instrument |
| How did the first dental handpiece operate? | Driven by a belt |
| What are the two most common types of dental handpiece? | Low-speed and high-speed handpieces |
| How fast can the low-speed handpiece rotate? | 30,000 RPM |
| Which attachment is used to hold a latch-type bur? | Contra-angle |
| Ultrasonic | Referring to mechanical radiant energy of water and sound vibrations used to break down material or tissue |
| Laser | Fiberoptic cable that produces a laser light |
| Console | Freestanding cabinet that holds contents or control devices, such as the laser handpiece |
| Torque | Twisting or turning force |
| On the high-speed handpiece, what helps to illuminate the working field? | Fiberoptic light |
| What type of handpiece resembles a sandblaster? | Air abrasion |
| Shank | Part of an instrument in which the handle attaches to the working end |
| What type of shank fits into the contra-angle attachment? | Latch-type |
| Restorative burs are made from what material? | Tungsten carbide |
| What design of bur is a 33.5? | Inverted cone |
| Flutes | Blades on the working end of a finishing rotary instrument the resemble pleats |
| What gives the diamond bur its advantage? | Cutting ability |
| Finishing burs are used on what type of dental material? | Esthetic material |
| What is used to hold a disc in the handpiece? | Mandrel |