Question 20 · LDEK · Veneers and inlays
The cementation procedure of composite overlays on teeth 26 and 27 in the patient should involve the following steps:
1) degreasing the surface with alcohol;
2) sandblasting the restoration inner surface with aluminum oxide for 10 seconds;
3) silicatization with the use of Co-Jet system;
4) the use of self-etching primer;
5) etching the surface with orthophosphoric acid for 60 seconds;
6) etching the surface with fluoric acid for 60 seconds;
7) rinsing the surface;
8) drying the surface;
9) application of silane on the surface for 60 seconds; 10) application of resin.
The correct answer is:
2) sandblasting the restoration inner surface with aluminum oxide for 10 seconds;
3) silicatization with the use of Co-Jet system;
4) the use of self-etching primer;
5) etching the surface with orthophosphoric acid for 60 seconds;
6) etching the surface with fluoric acid for 60 seconds;
7) rinsing the surface;
8) drying the surface;
9) application of silane on the surface for 60 seconds; 10) application of resin.
The correct answer is:
- A. 1,2,7,8,9,8,10.
- B. 5,7,8,2,1,9,10.
- C. 3,7,8,10.
- D. 1,4,8,10.
- E. 6,7,8,2,1,9,10.
Hint
The inner surface of a composite restoration is treated like a filled resin: mechanical roughening, cleaning and silane coupling, not glass-ceramic etching.
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