PROSPECTIVE EVALUATION OF IMPLANT SUPPORTED BRIDGES

这项研究的目的是比较和对比自然的反应 刚性或非刚性连接到骨整合牙科的基牙 植入物。临床上有意义的指标包括骨丢失和活动能力 将用于评估这两种治疗方法 选项，以便随后帮助牙医选择治疗方法 种植体附着在自然牙列上。 由三名口腔颌面外科医生组成的经验丰富的团队，六名 口腔修复医生和一名牙周病医生将被分配给这样的患者 对牙齿和种植体的所有评估都是盲目的，不进行评估 由放置和修复种植体的外科医生和修复师完成。 此外，牙周科医生现在也加入了团队，以便评估 所有的病人。一位统计学家参与了设计 这项研究将作为联合调查员参与。 50名患者将根据他们的双边需求进行选择 下颌远端延长桥与完整的下颌骨 上颌假牙。一支10毫米的。长整体式种植体将被放置在 左、右下颌第一磨牙区域。12周后， 种植体将用三个单元桥修复，并带有自然基牙 硬性或非硬性附着于种植体的牙齿评价。 桥接前后，X光片，软组织袋， 出血和菌斑指数，牙齿和种植体的活动度，以及一般情况 临床质量自植入时起每六个月进行一次评估 入职五年。所有患者将在以下时间进入研究 第三年的年终。将提交续订申请，以启用 长期随访。 几位NIDR协商一致会议的演讲者请求NIH支持 不同治疗方式对部分性脑损伤治疗效果的前瞻性研究 没有牙齿的病人。我们寻求有临床意义的信息。

The aim of this study is to compare and contrast the response of natural abutment teeth connected rigidly or non-rigidly to osseointegrated dental implants. Clinically significant criteria including bone loss and mobility of the teeth and implants will be used to evaluate these two treatment options, in order to subsequently aid the dentist in selecting methods of implant attachment to natural dentition. An experienced team of three Oral and Maxillofacial Surgeons, six Prosthodontists and one Periodontist will be assigned patients such that all evaluations of the teeth and implants are blinded, and not evaluated by the surgeon and prosthodontist who placed and restored the implants. In addition, the periodontist is now added to the team in order to evaluate all of the patients. A statistician has been involved with the design of this study and will participate as a co-investigator. Fifty patients will be selected based on their need for bilateral mandibular distal extension bridges articulating against a complete maxillary denture. One 10 mm. long Integral implant will be placed in the right and left mandibular first molar regions. Twelve weeks later, the implants will be restored with three unit bridges, with natural abutment teeth rigidly or non-rigidly attached to the implant evaluation. Prior to and following bridge insertion, radiographs, soft tissue pockets, bleeding and plaque indexes, tooth and implant mobility, and general clinical quality will be assessed every six months from the time of implant placement for five years. All patients will be entered into the study by the end of year three. A renewal application will be submitted to enable long term follow-up. Several NIDR consensus conference speakers requested NIH support for prospective studies on different treatment modalities for partially edentulous patients. We seek clinically significant information.