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用低咬(牙合)线下颌麻醉法在250例下颌牙拔除中进行临床实践,成功率95.6%,仅4.4%失败。该法以对侧下颌第二磨牙(牙合)面进针,针尖在翼下颌缝最下点刺入粘膜约3—5毫米达骨面,注射麻醉剂2毫升即可。操作方法简单;标志明确恒定,进针径路短,方向易于掌握,对软组织及血管损伤少,仅只需一针即能麻醉舌神经、颊神经、下齿槽神经。
The practice of low jaw bite anesthesia in 250 cases of mandibular tooth extraction clinical success rate of 95.6%, only 4.4% failed. The law to the contralateral mandibular second molar (occlusal) surface into the needle, the tip of the mandibular incision in the lowest point of the mucosa piercing the bone about 3-5 millimeters, injection of anesthetic 2 ml can be. The operation method is simple; the mark is clear and constant, the path of the needle is short, the direction is easy to grasp, the soft tissue and the blood vessel are less damaged, only one needle can anesthetize the lingual nerve, buccal nerve and inferior alveolar nerve.