牙周韧带麻醉法作为一种辅助性的追加麻醉是安全有效的,而且它可以作为一种独立的基本麻醉方法,但是有一定的局限性。注射方法:使用压力注射器和30号针头,或普通注射器及25号针头,从牙邻面插入进行注射,同时以手指或止血钳固定针头。注射时推压力较大,见局部软组织发白即停止注射。 Periodontal ligament anesthesia is safe and effective as an adjunct to additional anesthesia, and it can be used as a stand-alone basic anesthetic, but with some limitations. Injection method: Use a pressure syringe and a 30 gauge needle, or a normal syringe and a 25 gauge needle, insert it in from the face of the tooth and inject it while holding the needle with a finger or hemostat. Injection pressure is greater, see the local soft tissue whitening stop injection.