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首页> 外文期刊>The British journal of psychiatry : >Embracing patient choice [6]
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Embracing patient choice [6]

机译：拥抱患者的选择[6]

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The influence of angled abutments on stress is a matter of debate. It is widely accepted that increased stress on implants and bone has been associated with the use of angled abutments. However, comparisons of clinical success rates of implants restored with angled and straight abutments indicate no significant differences. The aim of the present study was to determine whether angled abutments could result in decreased stress on surrounding bone of single-unit dental implants. By means of finite element analysis (FEA), four simplified models were designed to simulate clinical scenarios in which that implants were placed in an ideal axial position or at an angled position. Each implant was paired with a straight or angled abutment. A simulated occlusal load of 100. N was applied along the vertical axis of the jawbone. The von Mises stress and strain were recorded for each model. The numerical results showed that angled abutments resulted in decreased stresses when implants were not placed in ideal axial position. The present study identified by means of FEA that angled abutments could result in decreased stress on the supporting bone of implant system and may provide some clues to resolve the debate regarding the influence of angled abutments.
机译：有角度的基台对应力的影响尚有争议。人们普遍认为，在种植体和骨骼上增加的应力与倾斜基台的使用有关。但是，比较用斜基台和直基台修复的种植体的临床成功率没有显着差异。本研究的目的是确定倾斜的基台是否可以减少单颗牙科植入物周围骨骼的应力。通过有限元分析（FEA），设计了四个简化模型来模拟将植入物放置在理想​​轴向位置或成角度位置的临床情况。每个植入物都与笔直或成角度的基台配对。沿颌骨的垂直轴施加100. N的模拟咬合负荷。记录每个模型的冯米塞斯应力和应变。数值结果表明，当种植体未置于理想的轴向位置时，成角度的基台可降低应力。本研究通过有限元分析确定倾斜的基台可以减少对植入系统支撑骨的应力，并可能提供一些线索来解决有关倾斜的基台影响的争论。

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