Question 20 (part 2) · LDEK · Crowns
The dentist planned fabrication of temporary crowns for damaged teeth, with an indirect method, with the use of silicone index. For this purpose:
1) before preparation diagnostic impressions, occlusion and facial bow registration was made and then sent to the lab;
2) before the preparation, silicone index in the patient’s mouth was made;
3) before the preparation, silicone index on diagnostic model was made;
4) he ordered for diagnostic waxing of future restoration on cast model, taking into consideration the esthetics and functionality;
5) silicone index was made on the wax-up model;
6) silicone index was filled with bis-GMA based die and introduced into the oral cavity;
7) silicone index was filled with polycarbonate die and introduced to the diagnostic model.
Correct answer is:
2) before the preparation, silicone index in the patient’s mouth was made;
3) before the preparation, silicone index on diagnostic model was made;
4) he ordered for diagnostic waxing of future restoration on cast model, taking into consideration the esthetics and functionality;
5) silicone index was made on the wax-up model;
6) silicone index was filled with bis-GMA based die and introduced into the oral cavity;
7) silicone index was filled with polycarbonate die and introduced to the diagnostic model.
Correct answer is:
- A. 1,2,6.
- B. 1,3,4,5,7.
- C. 1,4,5,6.
- D. 2,4,5,6.
- E. 2,3,4,5,7.
Hint
The index must copy the ideal future tooth form, so ask which model it is taken from and where the resin is set.
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