患者，女，46岁，干部，因左右上颌大牙反复疼痛来我科求治。检查8|8残根，松动Ⅰ～Ⅱ°牙周红肿，8|8拍牙片，了解残根情况，给消炎止痛药。嘱患者消炎后拔除残根。1994年11月17日下午复诊，在2％；盐酸利多卡因局麻，顺利拔除|8一周后，再用同一批号2％盐酸利多卡因作上牙槽 Patients, female, 46 years old, cadre, because of the maxillary maxillary repeated pain to our department for treatment. Check 8 | 8 residual roots, loose Ⅰ ~ Ⅱ ° periodontal swelling, 8 | 8 filming teeth, to understand the residual roots, to anti-inflammatory painkillers. Zhu Huanzhe anti-inflammatory removal of residual roots. November 17, 1994 afternoon referral, at 2%; lidocaine hydrochloride local anesthesia, the successful removal of | 8 a week later, then the same batch of 2% lidocaine hydrochloride for alveolar