The Journal of the American Dental Association
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Randomized Controlled Trial Comparative Study
A comparison of the anterior middle superior alveolar nerve block and infraorbital nerve block for anesthesia of maxillary anterior teeth.
The authors conducted a study to compare the efficacy of the anterior middle superior alveolar (AMSA) nerve block with that of the infra-orbital nerve block (IONB) in achieving pulpal anesthesia in the anterior maxilla. ⋯ The IONB produced anesthetic success in canine and premolar teeth, with a more rapid onset than that for the AMSA nerve block. Although the AMSA technique was significantly more successful than IONB in attaining incisor anesthesia, it was ineffective for central incisors, as assessed according to rigorous electronic pulp testing. The IONB and AMSA nerve block produced similar levels of injection discomfort.