Clinical Technique for Direct Composite Resin a GI

Question 1

primary contraindications for use of direct composites relate to

Answer 1

inadequate isolation
occlusal considerations to wear
extension to root surface

Question 2

what are the steps to sealants

Answer 2

• low viscous material
• cleaned with pumice and rinsed
• etched with 35-40% phosphoric acid (15-30 seconds)

Question 3

C-factor describes what

Answer 3

the ratio of bonded to unbonded surfaces in a tooth preparations

the higher the c-factor the higher the potential for composite polymerization