Home
Flashcards
Preview
dental
Home
Get App
Take Quiz
Create
what are the four types of hand instruments
probe
explorer
scaler
curette
what are the parts to the hand instruments
handle
shank-neck
working end
what 2 hand instruments usually manufacture as one piece
probe and explorer
probe
banded in mm for measuring pocket depth
explorer
used to detect plaque and calculus
check for cavities and exposed pulp chambers
checks for cervical line lesions and surface irregularities
what are the different types of explorers
Shepherds Hook
Pigtail Explorer
Shepherds Hook
most common
Pigtail explorer
twisted to allow only tip (not sides) of instrument to touch tooth
calculus removal forceps
allows quick removal of large pieces of calculus
one end is larger than the other
what do you do with the long of forceps
place over crown
what do you do with the short end of forceps
place under edge of calculus
scalers
three sharp sides, sharp tip
scales calculus from crown surface
what instrument don't we use subgingivally and why
scaler because could damage gingiva and periodontal ligament
where are most of the teeth
on the buccal surface of the teeth
curettes
two sharp sides, round toe
what instrument can be used subgingivally and supragingivally
curettes
where does the sharp edge of the curettes go
towards the tooth
what does the round toe of the curette keep you from doing
keeps you from causing damage to the gingiva
power scaler
converts electrical or pneumatic energy into mechanical vibration
what does the vibration from power scaler do
shatters calculus
what are the three type of power scalers
ultrasonic
sonic and rotary
ultrasonic scaler
converts sound waves into mechanical vibration
most commonly used
used supragingivally and subgingivally but be careful
sonic and rotary
converts air into mechanical vibration
what does most of the work on power scaler
vibrating tip
what is the biggest concern using the power scaler
heat
what does the water do in the power scaler
cools the tooth
how long should you stay in tooth using the power scaler
a few sec then move on to the next one
what is the power scaler used for
fine plaque
what don't you use the power scaler for
to remove obvious big chunks of plaque
where are the sound waves picked up from in the ultrasonic scaler
picked up at hand piece
device in hand piece pick up sound waves and turns it into vibration
ultrasonic metal strips/stacks
18k, 25k, 30k cycles/second
what is the amplitude of tip movement in ultrasonic scaler
0.01-0.05mm
very small movement
very narrow motion
why is it better to have lower amplitude using the ultrasonic scaler
causes less damage to tooth
ultrasonic and combination electrical motor
used for polishing and simple cutting of teeth
usually not as effective as air power
low speed hand speed not good to extract wit sectioning teeth
we have this one
what do to you do if a metal strip/stock unit is used as a ultrasonic tip
turn unit on and let it fill with water before inserting strip
what are the 3 types of ultrasonic tip
beaver tail tip
perioprobe tip
furcation tip
beaver tail tip
wide tip
supragingival cleaning
perioprobe tip
thin
can be used subgingivally
furcation tip
hooked to left or right- increased access to nooks and crannies
can be used subgingivally
curved
branch off
do we used rotary scalers why or why not
no because can easily damage tooth and burs become dull quickly
what are the dental units for polishing and drilling
electric motor powered system
air powered system
air compressor system
low speed hand piece
high speed hand piece
electric motor powered system
least expensive
operate at lower speed
higher torque
not as good as air powered systems
-usually don't come with water or irrigation system
air powered systems
cylinder-room air or nitrous (don't use)
air compressor- most prevalent
air compressor system
pumps air into an air storage tank
pressure in tank reaches 80-100 psi; compressor turns off
hand piece uses 30-40 psi
when pressure has decreased to minimum setting compressor kicks in again
low speed hand pieces
high torque and slow speed (5k-20k rpm)
used for polishing with porphy angles
and other procedures with contra angles (attachment used to change either direction or speed rotation)
lubricate at end of each day; according to manufacturer specs
can be used for cutting disk
high speed hand piece
300k-400k rpm
used for cutting teeth and root canal entries
lubricate daily
what should employers provide for safety requirements
safety glasses
mask
gloves
what is employees responsibility
to use safety requirements
eye protection
prevent foreign objects and bacteria from entering eye
mouth/lung protection
biological vapor from high speed equipment
hand/skin protection
disease control and prevents infection
Author
vanessasoto
ID
233934
Card Set
dental
Description
instruments
Updated
9/10/2013, 2:20:22 AM
Show Answers
Home
Flashcards
Preview