Prosthodontics & Occlusion · single question
The correct sequence for delivering a lithium disilicate crown at the chairside appointment is:
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Correct answer: A. Confirm shade → check interproximal contacts → evaluate marginal adaptation → verify occlusion
- A. Correct. The delivery sequence for a ceramic crown: (1) SHADE — confirm esthetic match before trying the crown in (once cemented, shade cannot be changed); (2) CONTACTS — verify interproximal contacts before seating; (3) MARGINAL ADAPTATION — check seating and fit; (4) OCCLUSION — verify and adjust before cementing. This sequence prevents damage from premature contact or esthetic surprises after cementation.
- B. Never cement before verifying all criteria — post-cementation adjustments damage the ceramic surface.
- C. Cementing before adjusting contacts or occlusion risks improper seating and post-cementation sensitivity/fracture.
- D. Adjusting occlusion first wastes time if there are contact or shade issues that would require remaking the crown.
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