title: Analysis of the biomechanical behavior of short implants: The photo-elasticity method.
abstract: The 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.
authors.affiliation: Araçatuba Dental School, UNESP - Univ Estadual Paulista, Campus of Araçatuba, Department of Dental Materials and Prosthodontics, Araçatuba, São Paulo, Brazil. Electronic address: ed.pl@foa.uneps.br.
authors.forename: Eduardo Piza
authors.initials: EP
authors.lastname: Pellizzer
authors.affiliation: Araçatuba Dental School, UNESP - Univ Estadual Paulista, Campus of Araçatuba, Department of Dental Materials and Prosthodontics, Araçatuba, São Paulo, Brazil. Electronic address: caroline.cantieri@gmail.com.
authors.forename: Caroline Cantieri
authors.initials: CC
authors.lastname: de Mello
authors.affiliation: University of Sacred Heart - USC, Department of Health Sciences, São Paulo, Brazil. Electronic address: joelfoaunesp@gmail.com.
authors.forename: Joel Ferreira
authors.initials: JF
authors.lastname: Santiago Junior
authors.affiliation: Araçatuba Dental School, UNESP - Univ Estadual Paulista, Campus of Araçatuba, Department of Dental Materials and Prosthodontics, Araçatuba, São Paulo, Brazil. Electronic address: victor_edsb@hotmail.com.
authors.forename: Victor Eduardo
authors.initials: VE
authors.lastname: de Souza Batista
authors.affiliation: Araçatuba Dental School, UNESP - Univ Estadual Paulista, Campus of Araçatuba, Department of Dental Materials and Prosthodontics, Araçatuba, São Paulo, Brazil. Electronic address: almeida.foa@gmail.com.
authors.forename: Daniel Augusto
authors.initials: DA
authors.lastname: de Faria Almeida
authors.affiliation: Araçatuba Dental School, UNESP - Univ Estadual Paulista, Campus of Araçatuba, Department of Dental Materials and Prosthodontics, Araçatuba, São Paulo, Brazil. Electronic address: fellippo@gmail.com.
authors.forename: Fellippo Ramos
authors.initials: FR
authors.lastname: Verri
mesh_terms: D001696:Biomechanical Phenomena; D002858:Chromium Alloys; D003442:Crowns; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003799:Dental Stress Analysis / Q000379:methods*; D004548:Elasticity; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008334:Mandible; D008962:Models, Theoretical
chemical_list: D002858:Chromium Alloys; D015921:Dental Implants
keywords: Dental implants; Dental prosthesis, implant-supported; Dental stress analysis