Class III, IV, and V Composite Restorations Flashcards
What are the steps in complete composite resin restoration?
Acid Etch
Prime
Bond/Adhesive
Place Composite
______ increases surface area; penetrates etched enamel creating micromechanical bond
Acid etch
If the tooth gets contaminated with saliva _________ and then rinse again and dry until frosted enamel appearance is present.
re-etch for 10 seconds
Teeth rich in fluoride require _____ etching times because fluoridated teeth are more resistant to acid
longer
◦Hydrophilic monomers in solvent
◦Draws adhesive in
◦This step is included with adhesive in our clinic
Primer
Resin bonding agent
Bond
The thin bonding agent engages the etched enamel through a _______ bond
micro-mechanical bond.
The self-curing or light-cured resin then ______bonds to the bonding agent
chemically
Primer/adhesive penetrate the intertubular dentin forming ______-
hybrid layer
What are created when the composite pulls back on the instrument?
Voids
Do opaque or translucent composites require longer curing time
Opaque
Large class III restorations require _____ shades especially when the preparation can be seen through from the facial to the lingual.
opaque shades
Light will pass through ______ shades in large restorations thus making the restoration stand out in a patients mouth
translucent
T/F: Etching and bonding is required between layers of resin
False
T/F: HOWEVER, if the surface gets contaminated between layers RE-ETCH the contaminated composite surface
True