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Revista de Odontologia da UNESP

versão On-line ISSN 1807-2577


CAMPOS, Júlio Ferraz et al. Comparative study of micro deformations resulting from axial and non-axial static loads under three prosthetic implant elements. Rev. odontol. UNESP [online]. 2014, vol.43, n.5, pp.351-357. ISSN 1807-2577.


The control of the micro strain surrounding implants is a factor that can lead to a better osseointegration and maintenance of bone structures.


evaluate in vitro, using strain gauge analysis , the influence of the axial and non-axial static load in implant-supported fixed partial dentures, varying the point of load application.


In a block of polyurethane three internal hexagonal implants were installed, on implants abutments microunit were connected with torque of 20 Ncm, and plastic prosthetic cylinders were screwed on to the abutments, which received standard patterns cast in Co-Cr alloy (n=10). Four strain gauges were bonded on the surface of the block tangentially to the three implants. Each metallic structure was screwed onto the microunit with a 10 Ncm torque. With a load application device (DAC) static vertical loads of 30kgf were applied for ten seconds at five predetermined points (A, B, C, D and E).


Result analyzed by RM ANOVA, in which the effect of the point of load application and differents specimens were not statistically significant, whereas regarding the points of load application presented statistical differenced (p=0.0001). Applying Tukey's multiple comparison tests.


The application of load on the non-axial points D and E produced an increase in the magnitude of micro strain around implants.

Palavras-chave : Dental implants; denture, partial, fixed; dental prosthesis.

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