Stress Distribution Study Using the Finite Element Method in Three Different Implant-Supported Fixed Complete-Arch Mandibular Prostheses.
نویسندگان
چکیده
PURPOSE The objective of this study was to assess the stress distribution generated by a simulated loading (100 N) in the area of the cantilever in three different five-implant mandibular protocol prosthesis models. MATERIALS AND METHODS The finite element analysis was carried out in three-dimensional models simulating: (1) a temporary all acrylic resin mandibular protocol prosthesis; (2) a metal-acrylic mandibular protocol prosthesis; and (3) a metal-ceramic mandibular protocol prosthesis. RESULTS The all acrylic model promoted the highest stress values on the implant closest to the cantilever loading point. CONCLUSION This study supports the need for a metallic bar reinforcement in the denture base.
منابع مشابه
تعیین توزیع تنش استخوان اطراف ایمپلنت‌های فک پایین در طرحهای مختلف پروتز به هنگام Mandibular- Flexure
Statement of Problem: In the treatment of edentulous patients with implant supported fixed partial dentures several factors such as implant numbers, implant position, superstructure pattern and cantilever length must be considered. Mandibular flexture in function exerts forces in peri-implant bone, however this phenomenon has received little attention. Purpose: The goal of this finite element a...
متن کاملEffect of Abutment Height Difference on Stress Distribution in Mandibular Overdentures: A Three-Dimensional Finite Element Analysis
Background and Aim: Implant-supported overdentures are a treatment option for edentulous patients. One of the important factors in determining the prognosis of overdenture treatment is to control the distribution of stress in the implant-bone and attachment complex. This study assessed the effect of implant abutment height difference on stress distribution in mandibular overdentures. Materials...
متن کاملمطالعه تنش‌های اطراف ایمپلنت به روش اجزای محدود در بریج‌های با ساپورت دندان/ایمپلنت در شرایط اتصال سخت و غیرسخت در پروتزهای سمان شونده
Background and Aims: Freestanding fixed partial prosthesis is considered the first choice whenever possible. However, anatomical limitations for implants and other reasons may create situation in which it would be preferable to connect the implants to teeth. A biomechanical dilemma in a tooth/implant-supported system comes from dissimilar mobility. This disparity cause the bridge to function as...
متن کاملمقایسه اثر مواد مختلف سازنده ساختار فلزی روکش بر توزیع تنش پیرامون ایمپلنت با آنالیز اجزاء محدود سه بعدی
Objectives: Despite the high success rate, implant-supported prostheses fail in some cases. Control of the applied forces is an important factor determining the success or failure of implants. Complete understanding of the biomechanical principles in implant-supported prostheses is necessary for offering an appropriate custom-made treatment plan for each patient and reducing the risk of functio...
متن کاملEffect of Number of Implants and Cantilever Design on Stress Distribution in Three-unit Fixed Partial Dentures: a Three-dimensional Finite Element Analysis
Although dental implants have been successfully used for the rehabilitation of fully edentulous and partially edentulous patients, patient’s various conditions constrict the application of implant, or make dental treatment using dental implants very complex and difficult. Implantsupported cantilever prostheses represent that conditions. Becker and Kaiser insisted that alignment problems, extens...
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ورودعنوان ژورنال:
- The International journal of prosthodontics
دوره 29 3 شماره
صفحات -
تاریخ انتشار 2016