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Article

Finite Element Analysis of a New Dental Implant Design Optimized for the Desirable Stress Distribution in the Surrounding Bone Region

by
Luigi Paracchini
1,
Christian Barbieri
2,
Mattia Redaelli
3,
Domenico Di Croce
4,
Corrado Vincenzi
5 and
Renzo Guarnieri
6,7,*
1
Private Practice INGEO, 28040 Varallo Pombia, Italy
2
Department of Biomedical, Surgical, and Dental Sciences, University of Milan, 20100 Milan, MI, Italy
3
Centro Odontoiatrico Albavilla, 22031 Albavilla, Italy
4
Private Practive, 65020 Pescara, Italy
5
Private Practice, 31030 Casier, Italy
6
Private Practice S.C.S. Scientific Counsulting Services, 31100 Treviso, Italy
7
Oral and Maxillofacial Sciences, University La Sapienza, 00100 Roma, Italy
*
Author to whom correspondence should be addressed.
Prosthesis 2020, 2(3), 225-236; https://doi.org/10.3390/prosthesis2030019
Submission received: 17 July 2020 / Revised: 14 August 2020 / Accepted: 17 August 2020 / Published: 24 August 2020
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Abstract

Dental implant macro- and micro-shape should be designed to maximize the delivery of optimal favorable stresses in the surrounding bone region. The present study aimed to evaluate the stress distribution in cortical and cancellous bone surrounding two models of dental implants with the same diameter and length (4.0 × 11 mm) and different implant/neck design and thread patterns. Sample A was a standard cylindric implant with cylindric neck and V-shaped threads, and sample B was a new conical implant with reverse conical neck and with “nest shape” thread design, optimized for the favorable stress distribution in the peri-implant marginal bone region. Materials and methods: The three-dimensional model was composed of trabecular and cortical bone corresponding to the first premolar mandibular region. The response to static forces on the samples A and B were compared by finite element analysis (FEA) using an axial load of 100 N and an oblique load of 223.6 N (resulting from a vertical load of 100 N and a horizontal load of 200 N). Results: Both samples provided acceptable results under loadings, but the model B implant design showed lower strain values than the model A implant design, especially in cortical bone surrounding the neck region of the implant. Conclusions: Within the limitation of the present study, analyses suggest that the new dental implant design may minimize the transfer of stress to the peri-implant cortical bone.
Keywords: finite element analysis; stress and strain patterns; marginal bone loss finite element analysis; stress and strain patterns; marginal bone loss

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MDPI and ACS Style

Paracchini, L.; Barbieri, C.; Redaelli, M.; Di Croce, D.; Vincenzi, C.; Guarnieri, R. Finite Element Analysis of a New Dental Implant Design Optimized for the Desirable Stress Distribution in the Surrounding Bone Region. Prosthesis 2020, 2, 225-236. https://doi.org/10.3390/prosthesis2030019

AMA Style

Paracchini L, Barbieri C, Redaelli M, Di Croce D, Vincenzi C, Guarnieri R. Finite Element Analysis of a New Dental Implant Design Optimized for the Desirable Stress Distribution in the Surrounding Bone Region. Prosthesis. 2020; 2(3):225-236. https://doi.org/10.3390/prosthesis2030019

Chicago/Turabian Style

Paracchini, Luigi, Christian Barbieri, Mattia Redaelli, Domenico Di Croce, Corrado Vincenzi, and Renzo Guarnieri. 2020. "Finite Element Analysis of a New Dental Implant Design Optimized for the Desirable Stress Distribution in the Surrounding Bone Region" Prosthesis 2, no. 3: 225-236. https://doi.org/10.3390/prosthesis2030019

APA Style

Paracchini, L., Barbieri, C., Redaelli, M., Di Croce, D., Vincenzi, C., & Guarnieri, R. (2020). Finite Element Analysis of a New Dental Implant Design Optimized for the Desirable Stress Distribution in the Surrounding Bone Region. Prosthesis, 2(3), 225-236. https://doi.org/10.3390/prosthesis2030019

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