A comparative study on the stress distribution around dental implants in three arch form models for replacing six implants using finite element analysis
| Autor: | Mahmoud Jahangirnezhad, Hojatollah Yousefimanesh, Maryam Zarei, Maryam Robati, Hossein Robati |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Orthodontics
dental implant Arch form business.industry medicine.medical_treatment finite element analysis maxillary arch Anterior teeth lcsh:RK1-715 stomatognathic diseases medicine.anatomical_structure stomatognathic system lcsh:Dentistry medicine Periodontics von Mises yield criterion Maxillary central incisor Original Article Implant Arch Dental implant business Canine tooth |
| Zdroj: | Journal of Indian Society of Periodontology Journal of Indian Society of Periodontology, Vol 22, Iss 2, Pp 127-132 (2018) |
| ISSN: | 0975-1580 0972-124X |
| Popis: | Background: Dental implant is a method to replacement of missing teeth. It is important for replacing the missed anterior teeth. In vitro method is a safe method for evaluation of stress distribution. Finite element analysis as an in vitro method evaluated stress distribution around replacement of six maxillary anterior teeth implants in three models of maxillary arch. Materials and Methods: In this in vitro study, using ABAQUS software (Simulia Corporation, Velizy-Villacoublay, France), implant simulation was performed for reconstruction of six maxillary anterior teeth in three models. Two implants were placed on both sides of the canine tooth region (A model); two implants on both sides of the canine tooth region and another on one side of the central incisor region (B model); and two implants on both sides of the canine tooth region and two implants in the central incisor area (C model). All implants evaluated in three arch forms (tapered, ovoid, and square). Data were analyzed by finite analysis software. Results: Von Mises stress by increasing of implant number was reduced. In a comparison of A model in each maxillary arch, the stress created in the cortical and cancellous bones in the square arch was less than ovoid and tapered arches. The stress created in implants and cortical and cancellous bones in C model was less than A and B models. Conclusions: The C model (four-implant) reduced the stress distribution in cortical and cancellous bones, but this pattern must be evaluated according to arch form and cost benefit of patients. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|