Lecture 1 Flashcards
(46 cards)
Name parts of the tooth from the outside in
Enamel, dentin, pulp
Describe enamel
Brittle
Describe dentin
Ductile
What is operative dentistry?
The science and art in dentistry that studies the prevention, diagnosis, treatment of defects in enamel and dentin
Carious
Bacterial jnfection, remove diseases tissue, precise cavity prep
Non carious
Loss of surface tooth structure due to mech or chemical factors. Ex attrition abrasion erosion
Dental caries
Bacterial infectious disease that attacks tooth surface
Cavity prep
Mech alteration to remove the disease tooth structure
Restoration
Dental material used to restore back function and morphology of the missing part of the tooth structure
Direct restoration
Dental material places in a soft state directly in cavity preparation to restore contour before it sets hard
Indirect restoration
Restoration fabricated outside the oral cavity then bonded in
Handpiece
Device that holds and delivers power to rotating instruments to perform tooth prep
Pros of electric driven handpiece?
Quieter, cuts with higher torque, higher power and less stalling
Slow speed
No water, less efficient but more controlled,
Uses for slow speed
Controlled removal, cleaning external surface of tooth, finishing and polishing
Medium speed
12,000-20,000 rpm
High speed
> 20,000, water coolant, most cutting efficiency
High speed uses
Teeth prep, removal of old restorations
What are straight handpieces used for?
Extra oral procedures, uses a straight bur
Contra angled attachment used for?
Intra oral procedures
What are blades instruments used for?
Excavating (6 or 8 blades) and finishing (10-20 blades)
Least to most blades: red, yellow, white
The greater number of blades the…
Smoother the finish
Carbide for blade cutting uses
Intracoronal preps
Diamond for abrasive cutting uses
Extra coronal preps
SuperFine to supercoarse: yellow, red, blue, green, black
More fine = smoother finish
