Posterior superior alveolar nerve blocks: a randomised controlled, double blind trial
Himanshi Singla1, Mohan Alexander2
1E-503, Sispal Vihar, Sector 49, Gurgaon, 121013 Haryana India.
Journal of Maxillofacial and Oral Surgery
|June 2, 2015
Summary
The straight needle technique for posterior superior alveolar nerve block (PSANB) is more successful than the bent needle technique. This study found the straight needle technique to be safe and effective for maxillary anesthesia.
Area of Science:
- Dentistry
- Anesthesiology
- Oral Surgery
Background:
- Local anesthesia is crucial in dentistry to manage patient pain.
- Various techniques exist for posterior maxillary anesthesia, with subtle differences.
- This study compares a commonly used technique with one claimed to be most accurate.
Purpose of the Study:
- To compare the efficacy and complications of the "straight needle technique" versus the "bent needle technique" for posterior superior alveolar nerve blocks (PSANB).
Main Methods:
- A prospective, randomized, double-blind study involving 120 patients.
- Two PSANB techniques were compared using a 26-gauge needle and 2% lignocaine with adrenaline.
- Pulpal anesthesia assessed via a cold test; data statistically analyzed.
Main Results:
- The straight needle technique demonstrated higher success rates (p=0.002).
- Both techniques were equally effective for first molars but the straight needle was superior for second and third molars on the right side.
- No complications were reported; cold test sensitivity was 82% and specificity 68%.
Conclusions:
- The straight needle technique for PSANB is a safe and highly effective method for achieving anesthesia in the maxillary molar region.
- This randomized controlled trial provides evidence supporting the routine use of the straight needle technique.
- Further research may explore variations in needle angulation and their impact on anesthetic success.
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