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ch35

CH 35 Dental Handpieces and Accessories

TermDefinition
How did the first dental handpiece operate? long belt running over a series of pulleys and then back to the motor, continuously moving the inserted rotary instrument.
What are the two most common types of dental handpieces? low-speed handpiece and the high-speed handpiece.
How fast can the low-speed handpiece rotate? 10,000 up to 40,000 rotations per minute (rpm).
Which attachment is used to hold a latch-type bur? The contra-angle attachment.
How fast does the high-speed handpiece operate? 450,000 rpm
How is the tooth kept cool and clean during use of the high-speed handpiece? Water coolant system
What type of bur locking system is found on the high-speed handpiece? It has a friction-grip device
On the high-speed handpiece, what helps illuminate the working field? Fiber-optic light
What type of shank fits into the contra-angle attachment? A latch-type
What type of handpiece resembles a sandblaster? The air abrasion unit
Restorative burs are made from what material? tungsten carbide
What design of bur is a 33½ inverted cone
What gives the diamond bur its advantage? cutting ability
Finishing burs are used on what type of dental material? Used on esthetic materials.
What is used to hold a disc in the handpiece? The Mandrel
Created by: ARIGON5248
 

 



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