作者对全口义齿下保留活髓牙根有否价值作了研究。 10名病人共有20个下颌牙齿分别是双尖牙,尖牙和切牙。除了保留的活髓牙以外,其余牙齿均拔除。保留牙的牙冠用牙钻切断到牙槽骨下2毫米,而后充分分离牙龈辨,用连续褥式缝合法严密缝合。在6星期以后,按常规法取模,制作全口义齿。义齿戴入后用压力指示膏查出受压点并进行缓冲,病人第一次复诊在24～36小时后,以后分别在1星期,1个月,3个月后复诊。在7～13个月之间,20个牙中,有10个牙根面上龈组织裂开,牙根暴露,其中8个牙根面作龈组织再缝合,但不成功。表明保留活 The authors studied the value of preserving vital root under a complete denture. A total of 20 patients in 10 patients with mandibular teeth were bicuspid, canine and incisors. Except for the remaining vital pulp teeth, the remaining teeth were removed. Retain the dental crown with a dental drill cut to 2 mm below the alveolar bone, and then fully separate the gums, with a continuous mattress suture tight suture. After 6 weeks, according to the conventional method to make full denture. After the denture was worn in, the pressure indicating cream was used to detect the pressure point and buffer it. After the first referral of the patient, the patients were referred for 24 to 36 hours and later for 1 week, 1 month and 3 months respectively. Between 7 and 13 months, of the 20 teeth, 10 of the root surfaces had gingival tissue dehiscence and root exposure. Eight of the root surfaces were used for gingival tissue re-suture but were unsuccessful. Show that keep alive