A 3D Finite Element Analysis of Bone Tissue in 3-Unit Implant-Supported Prostheses: Effect of Splinting Factor and Implant Length and Diameter

Autor(es)

de Souza Batista, Victor E. ^[1] ; Verri, Fellippo R. ^[2] ; Lemos, Cleidiel A. ^[3] ; Cruz, Ronaldo S. ^[2] ; Noritomi, Pedro Y. ^[4] ; Pellizzer, Eduardo P. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Western Sao Paulo UNOESTE, Presidente Prudente Dent Sch, Dept Prosthodont, Jose Bongiovani St 700, BR-19050920 Presidente Prudente, SP - Brazil

^[2] Univ Estadual Paulista, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, UNESP, Aracatuba - Brazil

^[3] Univ Fed Juiz de Fora, Dept Dent, Div Prosthodont, Campus Avancado Governador Valadares UFJF GV, Governador Valadares, MG - Brazil

^[4] Informat Tecnol Ctr Renato Archer, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN JOURNAL OF PROSTHODONTICS AND RESTORATIVE DENTISTRY; v. 29, n. 2, p. 76-83, JUN 2021.
• Citações Web of Science: 0

Resumo

This study aimed to assess the effects of splinting in 3-unit implant-supported pros-theses with varying the splinting factor, length of the implant, and the diameter of the 1 degrees molar (1 degrees M) implant on cortical bone tissue (CBT). Twelve 3D models were simulated, which represented the posterior maxillary with 3 implants, supporting 3-unit FDP varying the splinting factor (single-unit crowns, splinted crowns straight-line and offset implant configuration {[}OIC]), length of the implant (7mm and 8,5mm), and the diameter of the 1 degrees M (O4 mm and O5 mm). The CBT was analyzed by maximum principal stress and microstrain maps. The increase in implant diameter improved the biomechanical behavior of rehabilitation. The increase of the implant diameter in the 1 degrees M associated with OIC generated the best biomechanical behavior for CBT. The splinting was effective in decreasing stress and microstrain, mainly when associated with OIC and implant diameter of O5 in the 1 degrees M. The effect of increasing the diameter of the implant referring to the 1 degrees M for single-unit crowns was more effective than the effect of the splinting of implants with O4 mm in straight-line. The diameter and splinting factors showed to be more important than implant length to reduce the stress and microstrain on CBT. (AU)

• Processo FAPESP: 12/24893-1 - Análise das tensões em próteses implantossuportadas esplintadas, variando a localização dos implantes, pôntico e cantilever: estudo pelo método dos elementos finitos tridimensionais
• Beneficiário: Victor Eduardo de Souza Batista
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 15/07383-8 - Análise biomecânica de opções protéticas para reabilitação de maxila posterior com próteses implantossuportadas de três elementos: estudo pelo método dos elementos finitos 3D
• Beneficiário: Victor Eduardo de Souza Batista
• Modalidade de apoio: Bolsas no Brasil - Doutorado