Year : 2024

Volume : Volume 16

Issue : Issue 2

Address for correspondence :
Dr Pavan Shinde
himanshu.srivastava97@gmail.com

Abstract

Introduction: In the last 20 years, finite element analysis (FEA) has grown in importance as a tool for predicting how stress will affect an implant and the bone around it. Mastication produces vertical and transverse loads that cause axial forces, bending moments, and stress gradients in both the implant and the bone. Stress in the peri-implant region and in the components of implant-supported restorations has been studied using FEA-based techniques. FEA is a numerical stress analysis method that is frequently used to detect potential biomechanical issues. Solid objects are divided into several elements and connected at a common nodal point to create a finite element model. Each element is given the proper material properties that match the characteristics of the modeled object. In this research, a study has been conducted on comparative analysis of stress distribution in a mandibular implant-supported overdenture with using three different attachment systems of various heights. Aims and Objectives: To evaluate the influence of different attachment systems of various heights on stress distribution in mandibular implantsupported overdentures by using 3-dimensional FEA. Objective of this study is to evaluate the influence of different attachment systems with various heights on stress distribution in mandibular implant-supported overdentures. Materials and Methods: A three-dimensional FE model of mandibular section bone will be constructed. D-2 type of bone which is more commonly found in bone density in the mandibular posterior region is considered. OSSTEM TS III, conical implant of 4 mm diameter and 11.5 mm height is used. Types of attachments used are - ball attachment, locator attachment, magnet attachment. An average masticatory force 100 N will be determined from the literature. Force of 100 N at 30° to the longitudinal axis of the implant in buccolingual direction is applied to calculate the stress distribution. The stress levels will be calculated as von Mises stresses. Results: The result of the study showed that magnet attachment system showed a higher von Mises stress value and ball attachment system showed the lowest Von Mises stress value. The results also showed that, as height of attachment system increases up to certain limit, the Von Mises stress value decreases. Conclusion: Within the limitation of this FEA, it can be concluded that different attachment systems with varying heights do significantly influence the stress distribution in mandibular implant-supported overdenture.