Relationships of Stresses on Alveolar Bone and Abutment of Dental Implant from Various Bite Forces by Three-Dimensional Finite Element Analysis

Abstract

Occlusal trauma caused by improper bite forces owing to the lack of periodontal membrane may lead to bone resorption, which is still a problem for the success of dental implant. In our study, to avoid occlusal trauma, we put forward a hypothesis that a microelectromechanical system (MEMS) pressure sensor is settled on an implant abutment to track stress on the abutment and predict the stress on alveolar bone for controlling bite forces in real time. Loading forces of different magnitudes (0 N–100 N) and angles (0–90°) were applied to the crown of the dental implant of the left central incisor in a maxillary model. The stress distribution on the abutment and alveolar bone were analyzed using a three-dimensional finite element analysis (3D FEA). Then, the quantitative relation between them was derived using Origin 2017 software. The results show that the relation between the loading forces and the stresses on the alveolar bone and abutment could be described as 3D surface equations associated with the sine function. The appropriate range of stress on the implant abutment is 1.5 MPa–8.66 MPa, and the acceptable loading force range on the dental implant of the left maxillary central incisor is approximately 6 N–86 N. These results could be used as a reference for the layout of MEMS pressure sensors to maintain alveolar bone dynamic remodeling balance.

Biomechanical Comparison of Six Different Root-Analog Implants and the Conventional Morse Taper Implant by Finite Element Analysis

“…Standard anatomical teeth model of maxillary central incisor, maxillary lateral incisor, maxillary cuspid, maxillary first molar, mandibular first molar, and mandibular first premolar was scanned using a microcomputed tomography (micro-CT) scanner (Skyscan1172, Micro Photonics Inc., Allentown, PA). Next, transverse sections were generated and processed using Mimics v21.0 (Materialise, Leuven, Belgium) ( He et al, 2017 ; Kang et al, 2020 ; Oliveira et al, 2020 ). Then, we imported the model files into ANSYS workbench18.0 (ANSYS, Inc., Canonsburg, PA, United States) and established the finite element models consisting of root-analog implants and their surrounding tissues, including mucosa, cortical bone, and cancellous bone ( Figure 1 ).…”

“…ANSYS workbench was used to load the FEA models with hypothetical experimental conditions ( Dantas et al, 2020 ; Kang et al, 2020 ). Based on our experimental design, we applied vertical, horizontal, and oblique instantaneous loads of 100N on the models to simulate the masticatory force on teeth daily.…”

“…It is a powerful tool for analyzing the mechanics of irregularly shaped objects. Since 1976, when Weinstein et al (1976) applied FEA first time to oral implantology, this technology had become an important method for analyzing stress distribution in dental implants, abutment, and crowns ( Santos et al, 2009 ; Dos Santos Marsico et al, 2017 ; Kang et al, 2020 ). FEA showed better stress distribution than the conventional taper implant for root-analog implant.…”

Review on finite element analysis of dental implants

“…the parts of dental implant that was used in this study. Result of this study found that a sine function can define alveolar bone force-stress corelation17) …”

Laser-Sculptured Hierarchical Spinous Structures for Ultra-High-Sensitivity Iontronic Sensors with a Broad Operation Range

“…For instance, a marine hydrographic survey calls for sensors in the operation range of 0–60 MPa and wind tunnel tests demand sensors in the range up to 2.3–43.4 MPa . Some biomedical applications also require a wide pressure operation range, such as the analysis of plantar pressure distributions up to 1.75 MPa and the stress tracking of dental implants under the impact of biting actions from 1.5 to 8.66 MPa . Therefore, pressure sensors with high sensitivity and a wide operation range are important, especially for the development of flexible transducers.…”