A prospective study of single stage surgery for implant supported overdentures
A prospective study of single stage surgery for implant supported overdentures
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DOI：
10.1034/j.1600-0501.2002.130404.x
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发表时间：
2002-08-01
影响因子：
4.3
通讯作者：
Sherriff, M
中科院分区：
文献类型：
--
作者：
Fenlon, MR;Palmer, RM;Sherriff, M
目的：探讨球附着体支撑下颌覆盖义齿在Branemark种植体上单期手术置入的临床和心理效果。材料和方法：16例年龄32-74岁的无牙患者，下颌牙槽嵴萎缩（扁平），近2年内有技术上足够的下颌义齿难以应付的病史。Mark 11 Branemark种植体采用单阶段手术技术放置，手术时放置愈合基台。下颌全口义齿通过缓解基牙上方的区域并放置弹性衬垫进行改良。术后3个月，将愈合基牙更换为球基牙，重新制作全口义齿，随访2年。患者完成了一般健康问卷（GHQ），并回答了有关治疗前和提供义齿后3个月佩戴全口义齿的功能和心理影响的进一步问题。患者在植入覆盖义齿2年后完成GHQ。结果：6例患者在植入后的前2年内出现了2个种植体中的1个丢失。在植入后3个月首次加载时检测到，其中3个植入物骨整合失败。治疗后一般健康问卷得分均有统计学意义显著降低，且改善持续2年以上。对功能和心理问题的回答也同样得到改善。结论：单期手术导致种植体失败率高于预期。患者从提供的治疗中显示出显著的心理健康益处。
Objectives: To investigate the clinical and psychological outcomes with ball attachment supported mandibular overdentures on Branemark implants placed in a single stage surgical approach.Material and method: Sixteen edentulous patients aged 32-74, with atrophic (flat) mandibular residual alveolar ridges, and a history of having difficulty coping with technically adequate mandibular dentures made within the last 2 years were recruited. Mark 11 Branemark implants were placed using a single stage surgical technique with healing abutments placed at time of surgery. Mandibular complete dentures were modified by relieving the areas over the abutments and a resilient liner was placed. After a period of 3 months, healing abutments were replaced with ball abutments and new complete dentures were made and the patients followed for a period of 2 years. Patients completed the General Health Questionnaire (GHQ) and answered further questions relating to the functional and psychological impact of complete denture wearing before treatment and 3 months after the dentures were provided. Patients additionally completed the GHQ 2 years after overdenture insertion.Results: Six patients suffered from loss of one of their two implants in the f irst: 2 years after placement. Three of the implants had failed to osseointegrate, which was detected at initial loading 3 months after placement. General Health Questionnaire scores were statistically significantly reduced after treatment and the improvement was maintained over 2 years. Responses to the functional and psychological questions were similarly improved.Conclusion: Single stage surgery led to a higher rate of implant failure than expected. Patients showed significant psychological health benefits from the treatment provided.