test 2, class 4 amalgam and composite Flashcards
whats a class 4?
anterior proximal lesions that include the incisal edge
when treating a class 5 its particular important to do what with younger patients?
take a radiograph to check location of pulp horn
tooth preparation fundamentals of class 4
create access to the defective structure, remove faulty structures, create convenience form for the restoration.
What can be done if there isnt much tooth structure left?
retention grooves, Enamel bevels, sometimes pins
What can be done if there isnt much tooth structure left?
retention grooves, Enamel bevels, sometimes pins
Bevel can range from.
.5 mm to 2mm if you have alot of tooth structure lost
when should you select the composite shade for anterior restorations?
when the tooth is moist, when its desicated its a different color.
after curing the composite what do we use to finsih and polish?
supersnaps
if needed, what is used to finish the lingual portion of anterior teeth?
football diamond bur
What can be done if the incical edge is still good before preping?
making a custom matrix, This involves taking an impression with polyvinyl siloxane and creating a guide for composite placement.