Introduction: This investigation delves into the mechanical behaviour of titanium dental implants, a preferred choice for tooth replacement due to their superior reliability over alternative materials. The phenomenon of implant loosening, frequently induced by masticatory activities, underscores the significance of surface modification or texturing to bolster the interaction between the implant and bone tissue. This research comprehensively examines the effects of four distinct surface texturing techniques and five varied bone quality conditions on the biomechanical performance of these implants.
View Article and Find Full Text PDFObjectives: This 3D finite element analysis study aimed to investigate the effect of reinforcing CAD-CAM bars on stress distribution in various components of a posterior composite bridge.
Methods: A virtual model mimicking the absence of an upper second premolar was created, featuring class II cavity preparations on the proximal surfaces of the adjacent abutment teeth surrounding the edentulous space. Five distinct finite element analysis (FEA) models were generated, each representing a CAD-CAM reinforcing bar material: 3-YTZP (IPS.
Dent Med Probl
November 2023
Background: Dental implants are used as a traditional technique to replace missing teeth. In the longterm evaluation of dental implants, the stability and durability of the implant-bone interface are crucial. Furthermore, the success of dental implants depends on several factors, such as osseointegration, implant geometry and surface topography.
View Article and Find Full Text PDFIn order to reduce the loosening of dental implants, surface modification with hydroxyapatite (HA) coating has shown promising results. Therefore, in this present study, the sol-gel technique has been employed to form a tantalum and strontium ion-doped hybrid HA layer coating onto the titanium (Ti)-alloy substrate. In this study, the surface modification was completed by using 3% tantalum pent oxide (TaO), 3% strontium (Sr), and a combination of 1.
View Article and Find Full Text PDFPurpose: Recently, titanium (Ti) and its alloys have been widely used in dental and surgical implants in the last few decades. However, there is a loosening effect over a long period usage. Therefore, the present study aimed to increase life of an implant by its surface modification.
View Article and Find Full Text PDFTitanium implants are commonly used in dental and other joint replacements and its several modifications have been taken place to improve the adhesion between bone and implant. Different chemical and physical modifications are generally applied to the titanium surface for improving interlocking between bone and implant materials. The present work has been investigated the shear strength stiffness and stress concentration between Representative Volume Element (RVE) model and coating material while the surface of the RVE model modified with different types of surface textures.
View Article and Find Full Text PDFEver since the introduction of topology optimization into the industrial and manufacturing fields, it has been a top priority to maximize the performance of any system by optimizing its geometrical parameters to save material while keeping its functionality unaltered. The purpose of this study is to design a dental implant macro-geometry by removing expendable material using topology optimization and to evaluate its biomechanical function. Three-dimensional finite element models were created of an implant embedded in cortical and cancellous bone.
View Article and Find Full Text PDFJ Long Term Eff Med Implants
October 2020
The aim of using circular implants is to produce additional skin in healthy parts of the body, so that new skin that is produced may be used to aid in healing injured areas that occur with plastic surgery. This study shows the amount of additional skin that is produced over time from implants, corresponding to the amount of liquid that is inside the implant membrane. The authors perform the study first on implants alone and then we place implants under the skin.
View Article and Find Full Text PDFThe objective of this study is to look at stress patterns actuated by locator connections when used to hold mandibular overdentures retained by odd number implants. Two 3D models were prepared to simulate mandibular Implant overdentures retained by three and five Implants. The geometric solid models were modelled in solid modelling software, the models were then assembled and analysed.
View Article and Find Full Text PDFJ Long Term Eff Med Implants
October 2020
The objective of this finite-element analysis (FEA) study is to check the effect of stress on different types of threaded implants. To perform the FEA study of 81 models, the geometry of cancellous bone is imported and corresponding materials are set using FEA software. A common biting force is applied on the implant.
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