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首页> 外文期刊>Gerodontology >The comparison of marginal bone loss around mandibular overdenture-supporting implants with two different attachment types in a loading period of 36 months.
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The comparison of marginal bone loss around mandibular overdenture-supporting implants with two different attachment types in a loading period of 36 months.

机译：比较在36个月的负荷期间具有两种不同附着类型的下颌支持义齿的种植体周围的边缘骨丢失。

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OBJECTIVE: The aim of this study was to assess the influence of attachment types on the marginal bone loss (MBL) around dental implants supporting mandibular overdentures (OVD). BACKGROUND: There are a number of in vitro studies evaluating the influence of several factors on MBL around implants. MATERIAL AND METHODS: Mandibular OVD patients appearing at routine recall sessions consecutively 6, 12, 24 and 36 months after loading were included in the study group. All patients received mandibular OVD with either ball or bar attachments. Measurements were obtained from images of successive radiographs, which were scanned and digitised before, and analysed at x20 magnification. Statistical analyses were utilised in this study to assess the mean marginal bone level changes as well as to explore the potential effect of several parameters such as the cantilever or the attachment type on bone loss. RESULTS: One hundred and twenty-six implants in 51 patients with a mean age of 59.39 +/- 9.99 years were evaluated. There was no statistical significant difference between the distal and mesial bone loss rates of single or splinted attachment types, whereas bone loss rates were statistically higher in cantilever situations. CONCLUSION: Within the limitations of this study, gender, age and diameter of the implants do not play a role in MBL. Length of the implant is an important factor in marginal bone level maintenance. The attachment type for OVD support seems not to influence MBL, but cantilevering of the bars increases bone loss significantly.
机译：目的：本研究旨在评估附着类型对支持下颌覆盖义齿（OVD）的种植牙周围边缘骨丢失（MBL）的影响。背景：有许多体外研究评估几种因素对植入物周围MBL的影响。材料与方法：研究组包括在负荷后连续6、12、24和36个月常规召回会议中出现的下颌OVD患者。所有患者均接受带球或棒附件的下颌OVD。从连续的X射线照片的图像中获得测量值，这些图像之前已经过扫描和数字化，并以20倍的放大倍数进行了分析。在这项研究中使用统计分析来评估平均边缘骨水平变化，并探讨诸如悬臂或附着类型等几个参数对骨质流失的潜在影响。结果：对51例平均年龄为59.39 +/- 9.99岁的患者中的126个植入物进行了评估。单个或夹板附件类型的远端和中骨丢失率之间无统计学差异，而悬臂情况下的骨丢失率统计上较高。结论：在本研究的范围内，植入物的性别，年龄和直径在MBL中不起作用。植入物的长度是维持边缘骨水平的重要因素。 OVD支撑的附件类型似乎不会影响MBL，但钢筋的悬臂会显着增加骨质流失。

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