The Comparison of Stress Distribution with Different Implant Numbers and Inclination Angles In All-on-four and Conventional Methods in Maxilla: A Finite Element Analysis

Journal of Dental Research, Dental Clinics, Dental Prospects
Fariba Saleh SaberNader Abolfazli

Abstract

Background and aims. All-on-four technique involves the use of tilted implants to allow for shorter cantilevers. This finite element analysis aimed at investigating the amount and distribution of stress in maxillary bone surrounding the implants with all-on-four vs. frequently used method with six implants technique using different numbers and inclination angles. Materials and methods. A 3D edentulous maxillary model was created and implants were virtually placed anterior to the maxillary sinus and splinted with a superstructure. In total, five models were designed. In the first to the fourth models, four implants were placed with distal implants inclined 0, 15, 30, and 45 degrees, respectively. In the fifth model, six vertical implants were placed. 100 N loading was placed in the left most distal region of the superstructure. Maximum von Mises stress values were evaluated in cancellous and cortical bone. Results. The maximum stress values recorded in cancellous and cortical bone were 7.15 MPa and 51.69 MPa, respectively (model I). The reduction in stress values in models II to V 6%, 18%, 54%, and 24% in cancellous bone and 12%, 36%,62%, and 62% in cortical bone, respectively. Conclusion. Increasing the inclination in posterior...Continue Reading

References

Jul 10, 2001·Clinical Implant Dentistry and Related Research·C AparicioB Rangert
Apr 25, 2008·The Journal of Prosthetic Dentistry·Ruben DavoJuliana Rojas
Oct 13, 2007·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Amir H Khatami, Christopher R Smith
Apr 17, 2008·Periodontology 2000·Carlos AparicioNaoki Hatano
Oct 27, 2009·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Wael AttJörg Rudolf Strub
Mar 18, 2010·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Paul C DechowJill Peterson
Mar 30, 2010·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Rosse Mary Falcón-AntenucciPedro Yoshito Noritomi

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Citations

May 23, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Rodrigo TiossiAlex S L Fok
Nov 10, 2017·Medical & Biological Engineering & Computing·Zeynep Gümrükçü, Yavuz Tolga Korkmaz
Mar 2, 2019·Computer Methods in Biomechanics and Biomedical Engineering·Ting LiuYuanding Huang
Feb 7, 2020·Dentistry Journal·Michele ManacordaRaffaele Vinci
Sep 8, 2020·The Journal of Prosthetic Dentistry·Perihan OyarGonca Deste

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Software Mentioned

ABAQUS
3D CAD
Mimics Interactive Medical Image Control System

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