Feasibility Evaluation of a Modified Inferior Alveolar Nerve Block Technique: A Prospective Single-Group Clinical Study

Background

Inferior alveolar block technique is the most common technique used in dental procedures. However, a percentage of anesthetic failures still occurs. It is relatively painful, and patient discomfort is not uncommon.

Materials and Methods

A newly suggested technique involves the placement of the syringe above the occlusal surfaces of premolars & molars of the ipsilateral side, using short pediatric needle. After inserting the needle up to 2 mm, the syringe is swung to the contralateral side, and the rest of the needle is advanced (without bone contact). Patients reported pain and discomfort levels were assessed using the Numerical Rating Scale, from 0 to 10.

Results

Mean anesthesia onset time was 2.5 min. The anesthesia was unsuccessful and has been repeated in only one patient. No pain sensation or mild pain sensation during solution deposition, and during dental extraction were reported in (97.8%, and 95% respectively). All but one patient (98.9%) reported “no” or “mild” discomfort during the injection procedure.

Conclusion

The suggested technique demonstrated preliminary feasibility with a reasonable anesthetic onset and pain scores. The findings suggest the procedure is technically feasible and was well-tolerated by the participants. Furthermore, no instances of nausea and gag reflex were observed.

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