Clinical composite Flashcards
ILO 2.3a: have knowledge of a range of treatment options relevant to the operative management of dental caries and failed restorations
1
Q
what are factors to conside when removing caries and restoring with composite?
6
A
- tooth biology
- materials science
- interfaces
- marginal seal
- manipulation
- polymerisation
2
Q
what is needed in the design for interproximal caries access and removal?
3
A
- no unsupported enamel
- proximal axial wall bevel
- gingival floor bevel
3
Q
what is the difference in structure between primary and tertiary dentine? which is more favourable for hybrid layer creation?
A
- primary - open tubules, regular structure
- tertiary - irregular structure
primary dentine is more favourable for hybrid layer creation
4
Q
what are the qualities of old dentine?
A
- fewer tubules
- more mineralised
- occluded tubules
5
Q
what are the clinical procedures for composite?
A
- check quality of dentine - consider RMGI on areas where bonding may be problematic (tertiary and poor quality dentine)
- acid etch enamel for 10 seconds (20s total)
- acid etch enamel and dentine for 10 seconds
- moist surface needed for bonding agent on dentine
- prime dentine
- apply bond to dentine and enamel
- use flowable composite to mediate contraction stresses
- apply first increment of composite on floor
- apply successive increments on wall and floor - touch few surfaces as possible
