Endodontics · single question
What is the BEST prognosis of the following tooth fracture types?
Show answer and explanation
Correct answer: B. Cracked tooth (incomplete fracture) and fractured cusp
- A. Incorrect. Oblique root fractures have variable prognosis depending on the level of the fracture — those in the cervical third have worse prognosis.
- B. Correct. CRACKED TOOTH and FRACTURED CUSP have the BEST prognosis among fracture types. A cracked tooth (incomplete fracture) can often be treated with a cuspal-coverage restoration (crown). A fractured cusp, if above the gingival level, can also be restored. Early detection and treatment result in good outcomes.
- C. Incorrect. Vertical root fractures have the WORST prognosis — they usually require extraction as the fracture line propagates and bone loss occurs on each side.
- D. Incorrect. A split tooth (complete fracture through the tooth) has poor prognosis and often requires extraction.