Evaluation of the therapeutic efficiency of mandibular anterior implant‐supported fixed bridges with cantilevers
Evaluation of the therapeutic efficiency of mandibular anterior implant‐supported fixed bridges with cantilevers
复制标题
下颌前牙种植体支撑悬臂固定桥的治疗效果评价
DOI：
10.3760/cma.j.issn.0366-6999.20131291
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发表时间：
2013
影响因子：
6.1
通讯作者：
Xiang
中科院分区：
文献类型：
--
作者：
Min;Xiao;L. Zou;Wei;Xiang
种植体技术近年来发展迅速。然而，使用种植体支撑的悬臂固定桥一直存在争议。本研究的目的是评价悬臂式下颌前牙种植体支撑固定桥的临床效果。方法33例下颌前牙缺失患者（男15例，女18例，平均年龄42.6岁，年龄范围20 ~ 54岁）采用单种植支撑悬臂式固定桥。记录临床检查并拍摄x线片。平均随访时间为30个月（15 ~ 44个月）。结果种植体全部成活。未观察到假体松动或骨折。所有患者均对治疗满意。种植体加载12、24、36个月后的平均骨吸收值分别为0.94、1.18、1.35 mm。牙龈乳头高度变化范围为0 ~ 0.5 mm。修复1年组和修复2、3年组的平均牙龈高度变化差异有统计学意义（P <0.05）。结论在仔细和精确地选择患者后，如果下颌前牙缺失两颗，可以推荐使用单种植支撑固定桥修复。
Background Dental implant technology has developed rapidly in recent years. However, the use of implant‐supported fixed bridges with cantilevers has been controversial. The purpose of this study was to evaluate the clinical results of the mandibular anterior implant‐supported fixed bridges with a cantilever. Method Thirty‐three patients (15 males, 18 females; mean age, 42.6 years; range 20‐54 years) with two missing anterior mandibular teeth had single implant‐supported fixed bridges with a cantilever. Clinical examination was recorded and radiographs were taken. The mean duration of follow‐up was 30 months (15‐44 months). Results All implants survived. Loosening or fracture of the prosthesis was not observed. All patients were satisfied with the treatment. The mean bone resorption values after 12, 24, and 36 months of implant loading were 0.94, 1.18 and 1.35 mm respectively. The changes of gingival papilla height ranged from 0 to 0.5 mm. There was significant difference between 1‐year and 2 or 3 years restoration groups regarding the average gingival height changes (P <0.05). Conclusion After careful and precise selection of patients, restoration with a single implant‐supported fixed bridge with a cantilever can be recommended if two anterior mandibular teeth are missing.