Three-dimensional Finite Element Analysis of Impact of Implantation Site and Axial Direction on Fretting Degree with Immediate Implantation and Immediate Loading at Maxillary Central Incisor.

doi:10.13701/j.cnki.kqyxyj.2022.09.008

Abstract

Abstract: Objective: To analyze and explore the influence of the implantation site and axial direction on the fretting degree of the implant when the maxillary central incisor is immediate implantated and immediate loaded with different typing based on the three-dimensional finite element method. Methods: The oral CBCT image data of a healthy adult were referred to establish the three-dimensional finite element model of the maxillary central incisor with three typing (partial lip, intermediate, and partial palate) of immediate implantation and immediate loading. Different implantation site (apical site and partial palatine/labial site) and axial direction (longitudinal axis of tooth and long axis of alveolar bone) were simulated. Stress with different angles (0°, 30°, 45°, 60°, 90°) were loaded. ANSYS software was used to analyze the displacement of the implant. Results: Twelve three-dimensional finite element models of the maxillary central incisor with different typing for immediate implantation and immediate loading were successfully established. For partial lip or partial palatine maxillary central incisor with immediate implantation and immediate loading, partial palate along the long axis of the tooth/lip site implantation was easier to obtain smaller fretting degree of the implant. When the intermediate maxillary central incisor is for immediate implantation and immediate loading, it is easier to obtain smaller fretting degree of the implant at the apical site along the long axis of the alveolar bone. Conclusion: Different typing, implantation site, and axial direction will affect the fretting degree of the immediate implantation and immediate loading of the maxillary central incisor. In clinical practice, different surgical plan should be formulated by different typing, implantation site, and axial direction.

Key words: maxillary central incisor, immediate implantation and immediate loading, implantation site and axial direction, three-dimensional finite element analysis

DU Jun, QIU Yanju, WAN Zhe. Three-dimensional Finite Element Analysis of Impact of Implantation Site and Axial Direction on Fretting Degree with Immediate Implantation and Immediate Loading at Maxillary Central Incisor.[J]. Journal of Oral Science Research, 2022, 38(9): 831-836.

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