bur
a steel or tungsten carbide rotary cutting instrument?
console
freestanding cabinet that holds contents or control devices such, as the laser handpiece?
dental handpiece
an eletrical instrument used to hold rotary instruments?
flutes
blades on the working end of a finishing rotary instrument that resemble pleats?
laser
fiber optic cable that produces a laser light?
mandrel
metal shaft on which a sandpaper disc or other abrasive materials are mounted?
rotary
part or device that rotates around an axis?
shank
part of an instrument in which the handle attaches to the working end?
torque
twisting or turning force?
ultrasonic
referring to mechanical radiant energy of water and sound vibrations used to break down material or tissue?
rotary
is a part or device that rotates around an axis?
1940's
rotary instruments were introduced in dentistry in the?
dental handpiece
the first ___________ ___________ was operated by a long belt running over a series of pulleys and then back to the motor?
dental handpiece
is the most frequently used instrument in restorative dentistry?
high-speed , low-speed
two most common types of dental handpieces are?
low-speed motor
ranges from 10,000 up to 40,000 rotations per minute (RPM)?
prophylaxis attachments or "prophy angles
are used during polishing procedures to hold the prophy cup and bristle brush?
is the plastic disposable prophy angle, discarded after a single use
most common type of prophy angle?
450,000 rpm
high-speed instrument operates from air pressure and reaches speed up to?
friction-grip device
high-speed handpieces operate with a ?
ultrasonic handpiece
is used primarily for scaling and root planing procedure?
ultrasonic handpiece
is attached to the dental unit and is powered by electricity?
laser handpiece
uses a beam of laser light to cauterize soft tissue or vaporize decayed tooth structure?
standard handpiece
has many similar qualitites, such as water and air to cool the tooth and keep the area clean?
laser
treatment is painless, so anesthesia is unnecessary
1940's
small version of the sandblaster, was introduced to dentistry in the ?
air abrasion handpiece
was designed to remove stains and tooth decay?
handpiece
operates at speeds up to 20,000 rpm
most often result from improper cleaning and lubrication
promblem with dental handpieces ?
the working life of the handpiece is significantly shortened
if inappropriate cleaning solutions or techniques are used what will happen?
semicritical instruments
dental handpiece is identified as ?
sterilization procedure sheet
is one way to avoid errors in handpiece sterilization?
shank, neck, head
rotary instruments have three basic parts?
shank
of the bur is the portion that fits into the hand-piece?
neck
narrow portion that connects the shank and the head ?
head
rotary instrument is the cutting, polishing, or finishing portion ?
head
is manufactured in a large variety of sizes, shapes, and materials ?
name , series of numbers attached to its shape, and a purpose for use
a bur will have a ?
straight shank
is used in the straight - line attachment , which fits onto the low speed hand piece ?
latch-type shank
small groove at the end that mechanically locks into the contra-angle attachment, which fits into the low speed piece?
friction -grip shank
short and smooth and has no retention grooves in the end?
round
to provide access to the pulp chamber?
flat and taper
to reduce tooth structure during a crown preparation?
flame
to reduce tooth structure in preparation for a crown?
wheel
to make subgingival bevels in a crown preparation?
abrasive rotary instruments
are the most varied of the rotary instruments ?
abrasive material
are made in shapes ranging from discs and stones to points and strips?
the term bur
is applied to all rotary instruments that have a sharp cutting head ?