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The presurgical workup before third molar surgery: how much is enough?
Hadar Better1, Itzhak Abramovitz, Biniamin Shlomi
1Oral and Maxillofacial Surgery Unit, Tel Aviv Sourasky Medical Center, Israel.
Summary
Computed tomography (CT) scans are mainly indicated for third molar extraction when roots are near the inferior alveolar canal. However, CT scans had minimal impact on surgical outcomes, suggesting routine use is not recommended.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Imaging
Background:
- Third molar extraction is a common dental procedure.
- Computed tomography (CT) is increasingly used for pre-surgical assessment.
Purpose of the Study:
- To evaluate indications for CT scans before third molar extraction.
- To assess the impact of CT scan data on surgical outcomes and morbidity.
Main Methods:
- A study group of 189 patients (65 referred for CT) undergoing third molar extraction.
- Comparison of demographic data, tooth angulation, and referral indications between CT and control groups.
Main Results:
- No significant differences in demographics or tooth angulation between groups.
- Proximity of third molar root to the inferior alveolar canal (<1 mm) was the primary CT referral indication.
- CT scans minimally influenced surgical decisions or outcomes.
Conclusions:
- CT scans are primarily indicated for third molars with roots close to the inferior alveolar canal.
- CT data has limited impact on the surgical outcome of third molar extractions.
- Routine CT scan use for third molar extractions is not advised.