摘要
自1988年6月起,作者选择36例缺牙患者应用国产生物活性陶瓷人造牙根,制成螺纹形或圆柱形分别采用拔牙后即刻种植术16例,延期种植术20例,然后完成桩冠,经门诊追踪复查,2至44个月无一例脱落失败,其中植牙后动度观察,3月内恢复正常咬(牙合)功能26例27只牙,半年内恢复6例7只,现有3例4只牙松动Ⅱ°,另一例1只牙松动Ⅲ°。
Since June, 1988, 36 cases with partial anodontia have been implanted with bioactiveglass-ceramics (BGC) teeth and the therapeutic efficacy have showed satisfactory. The causes for 39 teeth deletions of the 36 cases were traumatic fractures of the roots (15 cases), residual roots (13 cases), traumatic deletion (4 cases), long-standing chronic periapical periodontitis (3cases) and carious dens extraction (1 case). The youngest of the cases was 17 years, the oldest 26 and the average was about 19. The tooth deletions were located as follows: The roots of BGC teeth, which were made in Huaxi Medical University, were prepared into spiral or cylindrical forms. The BGC teeth were implanted after dens extraction immediately (16cases) and postponement (20 cases). The diameters of the BGC teeth implanted were 3.3 mm (6 teeth), 3.5 mm (15 teeth), 3.7mm (13 teeth) and 4.0 mm (five teeth) respectively. The lengths from the root implanted to the gingival margin were 11.0mm (16 teeth), 13.0mm (11 teeth), 1-4.0 mm (8 teeth) and 15.0 mm (4 teeth) respectively. The duration of the implants was from 2 to 44 months. Till now all the BGC teeth implanted have been alive. After the implantation the tooth morbidity measure showed that 27 teeth of 26 cases and 7 teeth of 6 cases recovered normal occlusal function within 3 and 6 months respectively. Now 4 teeth of 3 cases have odontoseisis Ⅱ°, one tooth Ⅲ°. These teeth which have odontoseisis had distinct degrees of pain when chewing, but after occlusal adjustment the pain disappeared.
出处
《口腔颌面外科杂志》
CAS
1992年第4期20-22,共3页
Journal of Oral and Maxillofacial Surgery
