Operative I: exam III Exam Review | Verified Answers!!
24. the use of liner and base materials are only therapeutic: false; they also help create some additional structure above the pulp
25. T/F: as carious tooth structure is removed, it is recommended to leave some compromised tooth structure wh...
Operative I: exam III Exam Review | Verified Answers!!
1. if a preparation was to be overextended into the marginal ridge area, then
form of the tooth structure is compromised: resistance
2. T/F: in both open and closed sandwiches, the RMGI is placed on the gingival floor and extends out
to the margin: false; in a closed sandwich RMGI does not extend all the way out to the margin
3. when would you used the open sandwich method over the closed sandwich method?: this method
is used when theres no remaining enamel at the the cervical margin
4. how can retention be increased on a prep?: by placing bevels or internal grooves
5. bioactive materials contain ions like : calcium, phosphate and fluoride
6. T/F: glass ionomers are considered to be a true bioactive material: false; considered to be
bioactive-like
7. Universal Adhesive Plus contains an acidic monomer called : MDP
8. -contains the resin-dentin bonds which may be broken down
-this is the location where composite restorations may tend to fail: hybrid layer
9. flowable composites have (higher/lower) filler volume: lower
10.flowable composites have (increased/decreased) viscosity: decreased
11.what type of composite acts as a shock absorber?: flowable composites
12.flowable composites have (increased/decreased) shrinkage: increased
13.removes the smear layer/creates funnel shaped openings in tubules: acid conditioning
14.exposure of dentinal collagen fibrils to an etchant for more than 15 sec- onds may weaken the
layer: hybrid
15.T/F: for acid etch, the rinsing time should be similar to the etching time: true
16.in an open sandwich, RMGI restorative material is placed on the
and extends out to the margin: gingival floor
17.in a open sandwich what would you place on top of the RMGI?: composite
18.restorative procedures are considered only when there is a : cavi-
tation
19.from the inner surface outward, what are the sections of dentin?: 1. firm dentin
2. soft dentin
3. biofilm
20.liners have a thickness of no more than : 0.5mm
21.where on the tooth are liners placed?: pulpal and/or axial walls
22.bases have a thickness of (greater/less) than 0.5mm: greater
23.T/F: when rotary handpieces are used during tooth prep, heat and debris are generated which
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, Operative I: exam III Exam Review | Verified Answers!!
could have an effect on pulpal vitality: true
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