单个后牙缺失伴远端基牙倾斜的树脂黏结固定桥修复研究  

Restoration of single posterior tooth anodontia accompanied tilted distal abutment with resin bonded fixed partial denture

作　　者：宁江海[1] 高飞[2] 王燕一[1] 侯康林[1] 

机构地区：[1]解放军总医院口腔科,北京100853 [2]解放军总医院第一附属医院口腔科

出　　处：《解放军医学杂志》2009年第12期1448-1450,共3页Medical Journal of Chinese People's Liberation Army

摘　　要：目的观察树脂黏结固定桥(RBFPD)修复下颌单个后牙缺失合并桥基牙倾斜患者的临床效果,并总结其适应证和设计特点。方法选择2002-2003年在解放军总医院口腔科就诊的典型下颌单个后牙缺失、远端基牙近中倾斜的患者18例,所有患者基牙倾斜度不超过50°,基牙无明显松动,牙周无异常。根据基牙倾斜和模型观测结果,设计支托和固位体的位置和形态,义齿选择普通钛合金烤瓷或钴铬合金烤瓷修复,并在修复体完成后进行5年随访。随访时进行临床检查、X线片检查并询问患者主观感受。结果远端倾斜基牙平均倾斜33°。随访5年后,2例修复病例修复体脱落,其余义齿功能良好,牙周无明显炎症。基牙以及桥体下方牙龈无明显红肿,X线片示基牙牙周间隙无异常,患者对于修复体的外观及使用情况满意。5年期间修复体的成功率为88.9%。结论对于伴有基牙倾斜的单个后牙缺失,采用树脂黏结固定桥进行修复的效果可靠,并具有磨牙少、基牙无需进行根管治疗等优点。Objective To evaluate the restorative effects of customarily designed resin bonded fixed partial denture （RBFPD） on single posterior tooth anodontia accompanied by tilted distal abutment, and summarize the indications and characteristics of RBFPD. Methods From 2002 to 2003, 18 outpatients with single posterior tooth anodontia accompanied by tilted distal abutment were selected for the present study in the Department of Stomatology, General Hospital of People＇s Liberation Army. The gradient of tilted abutment was less than 50°. All the teeth with abutments were vital without obvious loosening or abnormal periodontal condition. The position and configuration of occlusion rest and retainer of denture were designed according to the inclination of abutment and cast survey. Titanium alloy or cobalt-chromium porcelain fused to metal RBFPD was prescribed, and all patients were followed up for 5 years. The clinical and X- ray examination were performed at each revisit and the subjective experience of patients was inquired. Results The average gradient of tilted distal abutment was 33°. During the period of 5-year follow up, in all the 18 patients but 2, all the dentures were in function without detachment. The gum of abutment and the bottom of the pontic were in good condition, and no periodontitis in abutment was observed. There was no obvious change of abutment examined by X-ray during the period of follow-up. The patients were satisfactory with the prosthesis, and the success rate was 88. 9% during the period of 5-year follow-up. Conclusion RBFDP used to restore the posterior single tooth anodontia with tilted abutment has the merit of less tooth reduction and reliable clinical effects, and root canal therapy is not necessary for tilted abutment.

关 键 词：牙缺失 牙移位 义齿 局部 固定 

分 类 号：R783.3[医药卫生—口腔医学]