ATTACHMENTS USED FOR IMPLANT-RETAINED MANDIBULAR OVERDENTURES

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目和 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 尽管强有力的证据已证实假体保留量是患者满意度的重要因素，但人们对种植体附着系统的特定保留强度对患者满意度的影响知之甚少。 Locator 连接系统具有三种不同的固位强度，广泛用于稳定下颌种植体固位覆盖义齿。 这项受试者内交叉研究旨在检查患者对定位器附件的三种不同固位强度的满意度，以稳定下颌中的种植体固位覆盖义齿。 计划使用 Locator 连接系统接受种植体固位下颌覆盖义齿的 40 名患者将参与这项研究。 使用随机分布，每位患者的假体将依次安装三种定位器附件保持强度中的每一种，每种为期一个月。 患者对现有修复体和使用不同固位锚固强度的种植体固位覆盖义齿的满意度将在不同时间点使用相同的调查问卷获得。 种植体相对于咬合平面的角度以及修复体的稳定性和固位力将由一名检查者进行评估，并与患者的反应相关联。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Although strong evidence has confirmed that the amount of prosthesis retention is an important factor for patient satisfaction, little is known about the impact of specific retentive strengths of implant attachment systems on patient satisfaction. The Locator attachment system is available in three different retentive strengths and is widely used to stabilize implant-retained overdentures in the mandible. This within-subject crossover study was designed to examine patient satisfaction with three different retentive strengths of the Locator attachment to stabilize implant-retained overdentures in the mandible. Forty patients scheduled to receive implant-retained mandibular overdentures using the Locator attachment system will participate in this study. Using a random distribution, each patient's prosthesis will be sequentially fitted with each of three Locator attachment retentive strengths, each for a period of one month. Patients' satisfaction with the existing prosthesis and with the implant-retained overdenture using different retentive anchor strengths will be obtained at various time points using identical questionnaires. The implants' angulation in reference to the occlusal plane, as well as the stability and retention of the prosthesis, will be evaluated by one examiner and correlated to the patients' responses.