Question 295 (part 2) · LDEK · Dental laboratory technology
Layer of varnish which constitutes isolation of plaster remnant during the fabrication of metal coping of complex crown, creates the space for cement in the size of:
- A. 5-10 µm.
- B. 10-15 µm.
- C. 15-25 µm.
- D. 20-35 µm.
- E. 35-45 µm.
Hint
Think of the typical thickness of two coats of die spacer applied short of the preparation margin.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Prosthodontics
- Indicate true statements:
- Presence of air in casting form, due to the lack of venting canals or mixing the shielding material without the use of vacuum stirrer are the most…
- Composite does not fuse so strongly with metal coping as ceramics. Fusion of metal with composite requires special preparation of surface…
- In fabrication of intracoronal restorations from gold alloys, following alloys are used:
- Intracoronal restorations which restore central cavity, covering all occlusal surface and cusps peaks is called:
- In case of low crown, little room in occlusion and short, angled roots, in order to restore the damaged tooth tissues, you may use: