Influence of Implant Position in Implant-Assisted Removable Partial Denture: A Three-Dimensional Finite Element Analysis
| Autor: | Jordi Gargallo-Albiol, Josep Cabratosa-Termes, Aida Lázaro-Abdulkarim, Javier-María de Medrano-Reñé, Octavi Ortiz-Puigpelat, Federico Hernández-Alfaro |
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| Rok vydání: | 2017 |
| Předmět: |
Orthodontics
Materials science medicine.medical_treatment 0206 medical engineering Dental prosthesis 030206 dentistry 02 engineering and technology 020601 biomedical engineering Mandibular first molar Mandibular second molar 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure stomatognathic system medicine Premolar Displacement (orthopedic surgery) Implant Dental implant General Dentistry Removable partial denture |
| Zdroj: | Journal of Prosthodontics. 28:e675-e681 |
| ISSN: | 1059-941X |
| Popis: | Purpose To determine the ideal position of a dental implant to assist a posterior extended partial removable dental prosthesis (PRDP), through stress values, displacement values, and deformation of periodontal ligament (PDL). Materials and methods A finite element analysis of different implant positions was analyzed using a 3D mandible model from a human patient. Test models were created: model A (implant in second molar area), model B (implant in the first molar area), and model C (implant in premolar area). A control model without implant support was also created. Overall displacement values, von Mises stress distribution maps, and nonlinear deformations were evaluated. Results Some differences could be observed between test models. The introduction of an implant in the edentulous area, unlike a conventional removable partial denture without implant support, decreases stress values in the biological structures such as: mandible, tooth, soft tissue, and PDL. Placing the implant in the first molar area resulted in improved displacement values, and reduced maximum stress values at the peri-implant bone area, metal structure, and implant were observed. Conclusions Within the limitations of this study we can conclude that placing the implant in the position of the first molar improves biomechanical behavior of implant-assisted PRDPs. |
| Databáze: | OpenAIRE |
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