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den200 final

TermDefinition
Since the late 1940s, ___________ burs have been used for cavity preparation. tungsten carbide
A ____________-shaped diamond rotary instrument is used to provide access to the pulp chamber. round
The ____________ handpiece operates from air pressure and reaches speeds up to 450,000 rpm. high-speed
The most commonly used finishing burs are flame-shaped. round-shaped tapered. All of the above.
The two most common types of dental handpieces are __________________ handpieces. low-speed and high-speed
The air-driven turbine dental handpiece was introduced in the 1950s.
Which of the following statements is true regarding the different types of shanks? The friction-grip shank is short and smooth and has no retention grooves in the end. The shank is held in the high-speed handpiece by the creation of friction that grips the entire shank.
The handpiece that has the greatest torque (twisting or turning force) is the ____________ handpiece. laboratory
The prophylaxis angle attaches to the ______________ and is used to polish the teeth. low-speed motor
The term applied to all rotary instruments that have a sharp cutting head with blades is bur.
Which type (#) of bur helps to provide angles to the walls of the cavity preparation with retention grooves? 699
All of the following are uses for a low-speed motor except removal of old or faulty restorations.
The three basic parts of a rotary instrument are the shank, neck, and head.
Laboratory burs have a _________ shank and a _________ head than dental burs. longer; larger
The parts of a rotary instrument are the shank, neck, and head.
The _____________ handpiece supplies a water coolant, because it can generate enough frictional heat on a tooth to cause possible damage to the pulp. high-speed
A #170 bur is used to provide angles to the walls of a cavity preparation.
Which type of rotary instrument shank is placed into a straight-line attachment? Long-straight
The handpiece that can be used with a variety of attachments is the __________ motor. low-speed
Rotary instruments were introduced in dentistry in the _________ to complement the use of hand instruments in the cutting, grinding, and polishing procedures. 1940s
Why is it important to clean debris from the external surface of the handpiece prior to sterilization? Mercury from removal of amalgam restorations can be vaporized by the autoclave.
The most varied category of rotary instruments is abrasive rotary instruments.
A porcelain adjustment is made with a low-speed motor.
A dental handpiece is identified as a _________ instrument that __________ be sterilized before reuse. critical; must
Air abrasion handpieces are most effective when used for external stain removal. sealants.
The handpiece that uses mechanical, radiant water energy and sound vibrations to create a pulsating effect on a tooth surface for the removal of calculus and stains is the ____________ handpiece. ultrasonic
Which of the following methods is recommended for sterilizing the high-speed handpiece? Autoclaving
The low-speed handpiece motor operates at ____________ rotations per minute (rpm). 10,000 to 40,000
The most frequently used device in restorative dentistry is the dental handpiece.
Advantages of a laser handpiece over a high-speed handpiece include treatment that is usually painless, so anesthesia is unnecessary.
Created by: ARIGON5248
 

 



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