Publicação Internacional - Revista de Alto Impacto

  É com grande prazer que informamos que através da Mestre em Reabilitação Oral, a Mestre Marcela Caffarena teve um importante artigo de sua autoria (com co-autoria do especialista em periodontia e implantodontia de nossa clínica, Thales Piantino) publicado na revista Clinical Implant Denstistry Related Research já disponível no importante site de buscas de artigos científicos PubMed.
 Tal artigo, foi realizado como resultado de um extenso trabalho do mestrado pela Faculdade de Odontologia de Ribeirão Preto da USP, da mestre Marcela e tem importantes reflexos à indústria e uso clínico de PRÓTESES SOBRE IMPLANTES.
 Para todos os colegas com "alma branemarkista", o trabalho é de vital importância e deveria ser apreciado para aplicação de metodologias de reabilitação com implantes.
 Confira o abstract abaixo:

Clin Implant Dent Relat Res. 2012 Jan 11. doi: 10.1111/j.1708-8208.2011.00430.x. [Epub ahead of print]

Abutment Rotational Freedom Evaluation of External Hexagon Single-Implant Restorations after Mechanical Cycling.

Junqueira MC, Silva TE, Ribeiro RF, Faria AC, Macedo AP, de Almeida RP.

Source

postgraduated student, titular professor, research laboratory specialist, associated professor, Department of Dental Materials and Prosthodontics, Dental School of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil.

Abstract

Purpose: The purpose of this study was to evaluate the rotational freedom between implant and abutment counterpart of two abutments types over external hexagon implants submitted to mechanical cycling. Materials and Methods: Ten implants with external hexagon (3.75 mm × 13 mm), five cast abutments, and five premachined abutments both with 4.1 mm plataform size were used in this study. Ten metallic crowns were fabricated using the two types of abutments and were fixed to each implant using titanium screws (Ti6Al4V). Rotational freedom measurements were made before and after the cast procedure and after the mechanical cycling. Groups were classified according to the rotational misfit register using University of California, Los Angeles abutment and implants as new (group 1 = G1); using crowns and implants after crown casting (group 2 = G2); and using crowns and implants after mechanical cycling (group 3 = G3). Oblique loading of 120N at 1.8 Hz and 5 × 10(5) cycles was applied on specimen. Results: Statistical analysis (p < .05) showed that no significant difference was observed when cast abutment was compared with premachined abutment after casting (p = .390) and mechanical cycling (p = .439); however, significant difference was noted before the casting (p = .005) with higher values for the cast abutments. Conclusions: Within the limitations of this in vitro study, it could be concluded that the abutment type used do not influenced the rotational freedom after casting and the amount of applied cycles (500,000 cycles) was not sufficient to significantly alter the values of rotational freedom at the implant/abutment joint.

© 2012 Wiley Periodicals, Inc.

PMID:

 

22236420

 

[PubMed - as supplied by publisher]

Parabéns Dra. Marcela e para maiores informações entrar em contato com nossa clínica!