Restorative & Materials · patient case question
All of the following are factors associated with this patient's condition EXCEPT:
Patient case: Stressed lawyer with cervical wear
Scenario: A lawyer under a LOT OF STRESS who has just moved to the city and needs a new dentist. Clinically the CERVICAL THIRD of the teeth is worn away.
Show answer and explanation
Correct answer: B. A decrease in plaque pH
- A. Masseter hypertrophy is a recognised clinical sign of chronic bruxism/parafunction — the very habit implicated in abfraction.
- B. Correct — this is the EXCEPTION. A fall in plaque pH is the mechanism of CARIES and of acid EROSION. Abfraction is a MECHANICAL, stress-related process and has nothing to do with plaque acid production.
- C. Loss of tooth structure at the cervical third is the defining feature of the lesion itself.
- D. Dentinal hypersensitivity is a common symptom, because the lesion exposes dentinal tubules at the cervical region.
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