Investigation of the influence of design details on short implant biomechanics using colorimetric photoelastic analysis: a pilot study
AUTOR(ES)
Zielak, João César, Archetti, Felipe Belmonte, Scotton, Ricardo, Filietaz, Marcelo, Storrer, Carmen Lucia Mueller, Giovanini, Allan Fernando, Deliberador, Tatiana Miranda
FONTE
Res. Biomed. Eng.
DATA DE PUBLICAÇÃO
27/11/2015
RESUMO
Introduction : The clinical survival of a dental implant is directly related to its biomechanical behavior. Since short implants present lower bone/implant contact area, their design may be more critical to stress distribution to surrounding tissues. Photoelastic analysis is a biomechanical method that uses either simple qualitative results or complex calculations for the acquisition of quantitative data. In order to simplify data acquisition, we performed a pilot study to demonstrate the investigation of biomechanics via correlation of the findings of colorimetric photoelastic analysis (stress transition areas; STAs) of design details between two types of short dental implants under axial loads. Methods Implants were embedded in a soft photoelastic resin and axially loaded with 10 and 20 N of force. Implant design features were correlated with the STAs (mm2) of the colored fringes of colorimetric photoelastic analysis. Results Under a 10 N load, the surface area of the implants was directly related to STA, whereas under a 20 N load, the surface area and thread height were inversely related to STA. Conclusion A smaller external thread height seemed to improve the biomechanical performance of the short implants investigated.
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