Lower Tooth Buccal Nerve Block Anesthesia

The patient's mouth was wide open, and the mandibular tooth plane was parallel to the ground. The syringe was placed at the contralateral mouth Angle, that is, between the first and second premolars, at a 45° Angle with the midline, and the injection needle should be 1cm higher than the mandibular tooth surface and parallel to it. About 2.5cm into the needle, can reach the mandibular bone surface of the inferior alveolar nerve groove back draw no blood, can inject 1-1.5 ml ru anesthetic. About 5 minutes later, the patient felt the ipsilateral lower lip Angle numbness, swelling, no pain.

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