拔除下颌牙,临床一般常规采用下牙槽神经阻滞麻醉法。往射麻药时,如按其操作规程要求行事,不但麻醉效果可靠,亦可避免发生井发症。如违犯操作规程,不注意患者的体位和穿刺点,进针角度及方向与深度,就有可能误将药物注入嚼肌肉、腮腺内,导致不良后果,此种现象临床较为常见。麻醉时,进针 Removal of mandibular teeth, the general clinical use of the lower alveolar nerve block anesthesia. When injecting anesthetics, if they act according to the rules of their operation, not only the anesthesia effect is reliable but also the occurrence of well complications can be avoided. Such as violations of rules, do not pay attention to the patient's position and puncture point, needle angle and direction and depth, it is possible mistakenly inject drugs into the chewing muscles, the parotid gland, leading to adverse consequences, this phenomenon is more common clinically. Anesthesia, needle