Comprehensive Glossary of Dental Assisting Burs: Terms and Definitions for Medical Students
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30 Terms
pear
330; opens prep, produces smooth rounded internal line angles
round bur
6; gently removes little bits of decay, opens prep
long pear
332L; opens prep produces smooth rounded internal line angles deeper
inverted cone
34; cuts retention grooves in a cavity prep, makes anchor
flame
7901; polishes/finishes amalgam or composite
football
7404; polishes/finishes amalgam or composite
wheel
16; removes the incisal edge of a crown prep/ makes surface flat
taper
7206; reduces tooth structure or polishes tooth structure depending on grit, commonly only used for crown prep
amalgam
245; opens prep form internal walls of a cavity prep, not as common anymore
flat end, straight fissure, cross cut
557; opens prep, straight walls flat floor, forms internal walls of a cavity prep
round end, straight fissure, plain cut
1157; opens prep, forms internal walls of a cavity prep
Flat End, Tapered Fissure, Plain Cut
171; creates angles walls of retention grooves in a cavity prep
flat end, tapered fissure, cross cut
701; cuts sides of a tooth for a crown prep
acrylic
trims acrylic on dentures and retainers, or plaster on models; not used in the mouth, lab bur
mandrel snap on type
holds sand paper disks
mandrel screw on type
holds sandpaper disks or wheels
sandpaper disks
polishes composite
jo dandy/ separating disk
cuts through a bridge
rubber point
polishes/finishes amalgam, composite or gold
polishing cup
polishes composite
end cutting
957; flat end shoulders for crown prep, only cuts on end not side
carbide
metal
sandpaper
its sandpaper disks
rubber
rubber is smooth and usually attached to metal grips
carborundum
rock
cuttlebone
more uneven end and usually only used once so attached to plastic end
diamond
shiny, lasts longer, almost like sandpaper
friction grip
used in high speed hand pieces
latch type
has a latch on it, used in low speed handpieces
long
longer used in low speed hand pieces
Note 
Flashcards (158)