| Autor: |
Majid Sedaghat Monfared, Forouzan Faghani, Amir Mahmoudi Motlagh, Paniz Fasih, Mohammad Mehdi Dehghan, Ardeshir Lafzi |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Journal of long-term effects of medical implants. 28(4) |
| ISSN: |
1940-4379 |
| Popis: |
The objective of the current study is to investigate the relative effect of splinted and nonsplinted implants on stress and strain in the supporting tissue around implants in two-implant-supported mandibular overdentures. Two models of mandibular overdentures using locators (nonsplinted implants) and bar locators (splinted implants) were constructed, and a vertical load of 100 N was placed on the central fossa of the mandibular first molar. Stress and strain values were obtained using three-dimensional finite-element analysis (ANSYS R18.0). Splinting reduced stress in peri-implant bone in the ipsilateral implant by half and in the contralateral implant by a quarter. Greater stress and a rise in strain from 59 to 79 μe in the posterior ridge were also observed with splinting. The model with splinted implants showed more favorable stress distribution in peri-implant bone, perhaps due to better distribution through the bar and the posterior ridge. These findings should be corroborated with clinical studies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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