Investigation of the influence of design details on short implant biomechanics using colorimetric photoelastic analysis: a pilot study

• Autor(a) principal: Zielak,João César
• Data de Publicação: 2015
• Outros Autores: Archetti,Felipe Belmonte, Scotton,Ricardo, Filietaz,Marcelo, Storrer,Carmen Lucia Mueller, Giovanini,Allan Fernando, Deliberador,Tatiana Miranda
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Research on Biomedical Engineering (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2446-47402015000400313
• topic: Biomechanics; Dental implants; Dental stress analysis; Short implants

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.