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Article

Influence of Dental Implant Diameter and Bone Quality on the Biomechanics of Single-Crown Restoration. A Finite Element Analysis

BTI Biotechnology Institute, Jacinto Quincoces, 39, 01007 Vitoria, Spain
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Author to whom correspondence should be addressed.
Academic Editor: Patrick R. Schmidlin
Received: 29 July 2021 / Revised: 27 August 2021 / Accepted: 1 September 2021 / Published: 6 September 2021
(This article belongs to the Special Issue Feature Papers in Dentistry Journal in 2021)
Background: Success of an implant-supported prosthesis is highly dependent on implant diameter and bone quality. The objective of this study is to assess these two variables under axial or 30° angulated loading. Methods: The study was conducted using finite element model simulations of dental implants with an unchanging length of 6.5 mm and varying diameters of Ø3.3; Ø3.5; Ø3.75; Ø4, Ø4.25 and Ø4.75 mm. The implants were placed in an axial position and a 2 mm high straight transepithelial (intermediate abutment) was used to perform a single tooth restoration. Four bone quality scenarios, Type IV, III, II or 0-I bone, were simulated from a simplified model of the mandible. A 200N load was applied both axially and at a 30° angle to the occlusal surface of the prosthesis, which was 11 mm above the implant platform, and the equivalent Von Mises stress in the bone was analyzed. Results: The maximum stress value was obtained for the Ø3.3 implant in Type IV bone (235 MPa), while the lowest value was obtained for the Ø4.75 implant and in Type 0-I bone (41 MPa). Regardless of the implant diameter, an improvement in bone quality produced a reduction in bone stress. The same effect was observed as the implant diameter was increased, being this effect even more pronounced. Conclusions: Implant diameter has an important effect on bone stress, with a reduction in stress as the implant diameter increases. View Full-Text
Keywords: biomechanics; finite element analysis; single-unit implant; short dental implant biomechanics; finite element analysis; single-unit implant; short dental implant
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MDPI and ACS Style

Anitua, E.; Larrazabal Saez de Ibarra, N.; Morales Martín, I.; Saracho Rotaeche, L. Influence of Dental Implant Diameter and Bone Quality on the Biomechanics of Single-Crown Restoration. A Finite Element Analysis. Dent. J. 2021, 9, 103. https://0-doi-org.brum.beds.ac.uk/10.3390/dj9090103

AMA Style

Anitua E, Larrazabal Saez de Ibarra N, Morales Martín I, Saracho Rotaeche L. Influence of Dental Implant Diameter and Bone Quality on the Biomechanics of Single-Crown Restoration. A Finite Element Analysis. Dentistry Journal. 2021; 9(9):103. https://0-doi-org.brum.beds.ac.uk/10.3390/dj9090103

Chicago/Turabian Style

Anitua, Eduardo, Naiara Larrazabal Saez de Ibarra, Iñigo Morales Martín, and Luis Saracho Rotaeche. 2021. "Influence of Dental Implant Diameter and Bone Quality on the Biomechanics of Single-Crown Restoration. A Finite Element Analysis" Dentistry Journal 9, no. 9: 103. https://0-doi-org.brum.beds.ac.uk/10.3390/dj9090103

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