INBDE (Integrated National Board Dental Examination) Practice Exam

Bone must not be overheated over _____C for > 1 min during preparation of the osteotomy.

1. 37

2. 42

3. 47

4. 52

The correct answer is: 47

When preparing an osteotomy in dentistry, it is crucial to avoid overheating the bone because it can lead to necrosis and delayed healing. The recommended threshold to prevent bone damage is not to exceed 47°C for more than 1 minute. Beyond this temperature and timeframe, the bone cells can be irreversibly damaged, affecting the success of the procedure and patient outcomes. Option A (37°C), is too close to normal body temperature and would not provide a safety margin to prevent overheating during osteotomy preparation. Option B (42°C) is also too low, as it doesn't allow for the necessary safety margin to prevent bone damage during the procedure. Option D (52°C) exceeds the recommended threshold of 47°C and poses a higher risk of overheating the bone during osteotomy preparation.