Anaesthesia injection method of nasal and oratory nerve block

Nasal palatine nerve block anesthesia

The injection of anesthetic into the anterior palatal foramen (incisor) to numb the nasopalatine nerve is also known as the anterior palatal injection.

The anatomical position of the anterior palatal foramen is at the intersection of the left and right cusp line and the middle palatal line. The surface is covered by a fusiform palatal papilla. If the front teeth are missing, the palatal nipple is 0.5cm behind the ridge of the alveolar ridge.

Injection method: the patient tilted his head back, opened his mouth wide, injected the needle into the mucosa from the lateral edge of the palatal papilla, and then rotated the needle to the midline, so that it was parallel to the long axis of the central incisor, and pushed backward and upward about 0.5cm to enter the anterior palatal aperture. The tissue is dense, and large pressure is needed when anesthetics are injected. Generally, the injection volume is 0.25--0.5ml.

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