Prosthodontics & Occlusion · single question
A 32-year-old has a crown on a maxillary central incisor that keeps coming off; she has a deep bite. What is the underlying cause of the failure?
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Correct answer: A. Traumatic/problematic occlusion (deep bite overloading the crown)
- A. Correct. A deep bite places excessive/eccentric occlusal force on the anterior crown, repeatedly dislodging it — an occlusal problem must be addressed.
- B. Shade is esthetic and does not cause debonding.
- C. Cement allergy would not cause repeated mechanical dislodgement.
- D. Hygiene affects caries/perio, not direct dislodgement from occlusal overload.
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