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患者男孩,5岁半,病例号43095,于1974年6月1日因(?)肿胀来门诊治疗。病孩过去发易风疹块,但没有明确的药物过敏史。普鲁卡因皮试阴性。经口腔检查诊断为(?)牙髓坏疽并发根周肿胀。即应用加有规定量肾上腺素的2%普鲁卡因2毫升作右侧下齿槽神经传导麻醉后,开穿髓腔减压并去除冠部坏疽牙髓,同时给四环素2日量内服。次日复诊病牙已不痛,但主诉当日回去4小时后右侧下唇粘膜上逐渐出现一块白色圆形溃疡,直径约2/3厘米左右,稍有疼痛。病孩否认下唇被牙齿咬过。针对上述情况,用生理盐水冲洗溃疡面后,涂龙胆紫,并给非那更内服。隔日复诊,溃疡面逐渐缩小,6天后完全消失,未留疤痕。鉴于家长坚持要拔除患牙,改用利多卡因麻醉后完成手术。本次注射后未发生类似的下唇溃疡。我们认为本例溃疡发生的部位不在拭过碘酊等消毒药
Patient Boy, 5 and a half years old, Case No. 43095, was treated for swollen (?) Swelling on June 1, 1974. In the past, the sick child was prone to rubella, but there was no definite history of drug allergy. Procaine test negative. Oral examination diagnosed as (?) Pulp gangrene complicated by root swollen. That is, 2 mL of 2% procaine plus a prescribed amount of epinephrine was applied to perform anesthesia on the right inferior alveolar nerve and the medullary cavity was decompressed to remove the pulp of the gangrenous gangrene. At the same time, the tetracycline was orally administered on the 2nd day. Visits the next day the patient has no pain teeth, but the day before the complaint back 4 hours after the right lower lip mucosa gradually appeared a white round ulcer, about 2/3 cm in diameter, a little pain. The sick child denied that his lower lip had been bitten by his teeth. In response to the above situation, rinse the ulcer with saline, painted gentian violet, and give non-that more internal administration. The next day referral, ulcers gradually reduced, completely disappeared after 6 days, leaving no scars. In view of the parents insisted to remove the tooth, use lidocaine anesthesia to complete the operation. No similar lower lip ulcer occurred after this injection. We think the site of ulcer in this case is not wiped disinfectants such as iodine tincture