我们将2％普鲁卡因麻药加压注入髓腔,称之为髓内加压麻醉注射法。注射方法:前牙用2％普鲁卡因浸润麻醉注射,后牙用2％普鲁卡因阻滞麻醉注射。普鲁卡因的用量和麻醉注射的方法均于普通拔牙法相同,然后在患牙的舌面或(牙合)面开髓,穿通髓角,扩大露髓点,前牙达到针头能循直线方向进入根管内为宜,后牙使针头能进入髓室即可。此时加压推注2％普鲁卡因0.5～1毫升,暂勿退针,用该针探查牙髓,多无疼痛 We will 2% procaine anesthesia pressure into the medullary cavity, called intramedullary anesthesia injection. Injection method: anterior teeth with 2% procaine infiltration anesthesia injection, posterior teeth with 2% procaine anesthesia injection. The amount of procaine and anesthetic injection methods are the same as normal extraction method, and then open the pulp in the tongue or occlusal surface of the teeth, through the pulp angle, expanding the exposed pulp point, the anterior teeth reach the needle can be a straight line Directions into the root canal is appropriate, the posterior teeth so that the needle can enter the pulp chamber can be. At this point pressurized injection of procaine 2% procaine 0.5 ~ 1 ml, do not temporarily withdraw the needle, probe the pulp with the needle, and more no pain