Evaluation of Stress Distribution and Force in External Hexagonal Implant: A 3-D Finite Element Analysis

Vinod Bandela, Ram Basany, Anil Kumar Nagarajappa, Sakeenabi Basha, Saraswathi Kanaparthi, Kiran Kumar Ganji, Santosh Patil, Ravi Kumar Gudipaneni, Ghazi Sghaireen Mohammed and Mohammad Khursheed Alam
Additional contact information
Vinod Bandela: Department of Prosthetic Dental Sciences, Fixed Division, College of Dentistry, Jouf University, Sakaka 72341, Saudi Arabia
Ram Basany: Department of Prosthodontics, S.V.S Institute of Dental Sciences, Appannapally, Mahbubnagar 509002, India
Anil Kumar Nagarajappa: Department of Oral Surgery and Maxillofacial Diagnostics, College of Dentistry, Jouf University, Sakaka 72341, Saudi Arabia
Sakeenabi Basha: Department of Community Dentistry, Faculty of Dentistry, Taif University, Taif 21974, Saudi Arabia
Saraswathi Kanaparthi: Department of Pedodontics and Preventive Dentistry, St. Joseph’s Dental College and Hospital, Eluru 534004, India
Kiran Kumar Ganji: Department of Preventive Dentistry, Periodontics Division, College of Dentistry, Jouf University, Sakaka 72341, Saudi Arabia
Santosh Patil: Department of Oral Medicine and Radiology, New Horizon Dental College and Research Institute, Bilaspur 495001, India
Ravi Kumar Gudipaneni: Department of Preventive Dentistry, Pediatric Dentistry Division, College of Dentistry, Jouf University, Sakaka 72341, Saudi Arabia
Ghazi Sghaireen Mohammed: Department of Prosthetic Dental Sciences, Fixed Division, College of Dentistry, Jouf University, Sakaka 72341, Saudi Arabia
Mohammad Khursheed Alam: Department of Preventive Dentistry, Orthodontics Division, College of Dentistry, Jouf University, Sakaka 72341, Saudi Arabia

IJERPH, 2021, vol. 18, issue 19, 1-9

Abstract: Purpose: To analyze the stress distribution and the direction of force in external hexagonal implant with crown in three different angulations. Materials and Methods: A total of 60 samples of geometric models were used to analyze von Mises stress and direction of force with 0-, 5-, and 10-degree lingual tilt. Von Mises stress and force distribution were evaluated at nodes of hard bone, and finite element analysis was performed using ANSYS 12.1 software. For calculating stress distribution and force, we categorized and labeled the groups as Implant A1, Implant A2, and Implant A3, and Implant B1, Implant B2, and Implant B3 with 0-, 5-, and 10-degree lingual inclinations, respectively. Inter- and intra-group comparisons were performed using ANOVA test. A p -value of ?0.05 was considered statistically significant. Results: In all the three models, overall maximum stress was found in implant model A3 on the implant surface (86.61), and minimum was found on model A1 in hard bone (26.21). In all the three models, the direction of force along three planes was maximum in DX (0.01025) and minimum along DZ (0.002) direction with model B1. Conclusion: Maximum von Mises stress and the direction of force in axial direction was found at the maximum with the implant of 10 degrees angulation. Thus, it was evident that tilting of an implant influences the stress concentration and force in external hex implants.

Keywords: finite element analysis; implant; stress; force; external hex implants (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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