Biomechanical Stress Analysis of Platform Switch Implants of Varying Diameters on Different Densities of Bone.

Sandipan Mukherjee,Mahesh M,Ann Sales,Prashanth Bajantri,Vignesh Kamath,Umesh Pai,Sharon Saldanha,Thilak Shetty,Shobha Rodrigues,Puneeth Hedge,Luca Testarelli

doi:10.1155/2022/5972259

Sandipan Mukherjee, Mahesh M + Show 9 more

Open Access

https://doi.org/10.1155/2022/5972259

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Abstract

Purpose The purpose of this study was to evaluate and compare the strain developed in D2 and D3 types of bones on vertical loading by platform switch implants of different diameters. Materials and Methods Implants of diameters 3.25 mm, 4.2 mm, and 5.0 mm and of length 11.5 mm were taken and placed each on D2 and D3 bone models. Strain gauges were attached on the buccal and the lingual sides on each of these samples, and a vertical load of 190N was placed on the samples. The strain was recorded using a data logger. The data obtained was analysed using one-way ANOVA and post hoc Tukey test. Results In D2 and D3 bone models, 3.25 mm significantly showed greater bone strain values. The buccal side strain was higher irrespective of the implant diameter and density of bone. Conclusion Within the limitations of the study, it may be concluded that the narrow diameter implant produces greater strain than 4.2 and 5.0 mm diameter implants, respectively. The buccal side consistently produced higher bone strain values.

Highlights

Materials and MethodsFollowing Institutional Ethical Committee clearance and obtaining appropriate consent, this study was carried out in the Department of Prosthodontics of the Institution, Mangalore, India, in collaboration with Konkan Speciality Polyproducts Pvt. Ltd
Biomechanical factors that influence stress in the bone around an implant include the quality and quantity of bone, implant design, diameter, and platform switching among other factors [1]
Finite element analysis (FEA), and strain measurement techniques have all been used to determine the developed stress around the implants. e finite element analysis (FEA) results concluded with the decrease in implant diameter, and there

Summary

Materials and Methods

Following Institutional Ethical Committee clearance and obtaining appropriate consent, this study was carried out in the Department of Prosthodontics of the Institution, Mangalore, India, in collaboration with Konkan Speciality Polyproducts Pvt. Ltd. E American Society for Testing Materials (ASTM) has standardized polyurethane blocks for testing orthopedic implants as they have same mechanical properties as cancellous bone [13]. For this reason, the polyurethane blocks of different densities, simulating the D2 and D3 types of bones, were selected to perform this study. The polyurethane blocks of different densities, simulating the D2 and D3 types of bones, were selected to perform this study Density of these bones used in this study is in accordance with Misch’s classification

Polyurethane Blocks

Preparation of Sample

Findings

Conclusion