Produção Nacional
Analysis of the biomechanical behavior of short implants: The photo-elasticity method
2015; Elsevier BV; Volume: 55; Linguagem: Inglês
10.1016/j.msec.2015.05.024
ISSN1873-0191
AutoresEduardo Piza Pellizzer, Caroline Cantieri de Mello, Joel Ferreira Santiago, Victor Eduardo de Souza Batista, Daniel Augusto de Faria Almeida, Fellippo Ramos Verri,
Tópico(s)Dental materials and restorations
ResumoThe aim of this study was to analyze the stress distribution of short implants supporting single unit or splinted crowns by the photo-elasticity method. Four photo-elastic models were produced: A (3.75×7 mm); B (3.75×7 mm, 3.75×7 mm and 3.75×7 mm); C (3.75×10 mm, 3.75×7 mm and 3.75×7 mm); D (3.75×13 mm, 3.75×7 mm and 3.75×7 mm). The prostheses were made with Ni-Cr alloy. A load of 100 N in the axial and oblique directions was applied, totaling 380 applications, individually capturing their images in each model. The data were randomized and analyzed qualitatively and quantitatively by 2 examiners. The oblique loading was significantly more damaging. The increase in length was favorable for stress distribution (p<0.05). The splinting was beneficial for the transmission of stresses mainly (p<0.05). The splinting of the crowns, as well as increasing the length of the first implant and axial loading was most beneficial in the stress distribution. Short splinted implants behaved better than single unit implants. Increasing of the length of the first implant significantly improved the stress distribution in all analyzed situations.
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