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Mechanical and microstructural properties of fixation systems used in oral and maxillofacial surgery

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Abstract

Objectives

This paper aims to evaluate in vitro the mechanical and microstructural properties of internal fixation systems used in oral and maxillofacial surgeries.

Materials and methods

Four brands of internal fixation systems (screws and 4-hole straight plates) were selected and assigned to four groups: G1 Leibinger®, G2 Tóride®, G3 Engimplan®, and G4 Medartis®. The systems were submitted to Vickers hardness testing, metallographic and interstitial elements chemical composition analyses. Data were submitted to ANOVA and Tukey’s test for statistical analysis.

Results

Plates in groups 1, 2, and 3 showed similar microstructure and mechanical properties, different from those in G4 revealing larger grains. In all groups, the screws showed similar microstructure, with uniform arrangement and size of grains; the screws showed higher hardness values than those observed for the plates.

Conclusions

The results indicate that all materials tested are adequate for use in oral maxillofacial surgeries.

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Acknowledgments

The authors wish to thank Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) and Prof. Dr. Rubens Caram Jr. and to FEM/DEM/LABMET—Unicamp for your important support in conducting and analyzing the data.

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Authors and Affiliations

  1. Department of Oral Diagnosis, Oral and Maxillofacial Surgery Division, Piracicaba Dental School CP 52, State University of Campinas-UNICAMP, 13.414-903, Piracicaba, SP, Brazil

    Marcelo Breno Meneses Mendes, Raquel Correia de Medeiros, Andrezza Lauria, Érica Marchiori & Roger William Fernandes Moreira

  2. Temporary Substitute Professor of Oral and Maxillofacial Surgery, University of Passo Fundo, Rio Grande do Sul, Brazil

    Renato Sawazaki

  3. Department of Manufacturing and Materials Engineering, State University of Campinas-UNICAMP, CP 6122, 13.083-970, Campinas, SP, Brazil

    Éder Sócrates Najar Lopes

Authors
  1. Marcelo Breno Meneses Mendes
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  2. Raquel Correia de Medeiros
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  3. Andrezza Lauria
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  7. Roger William Fernandes Moreira
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Correspondence to Marcelo Breno Meneses Mendes.

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Mendes, M.B.M., de Medeiros, R.C., Lauria, A. et al. Mechanical and microstructural properties of fixation systems used in oral and maxillofacial surgery. Oral Maxillofac Surg 20, 85–90 (2016). https://doi.org/10.1007/s10006-015-0532-3

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  • DOI: https://doi.org/10.1007/s10006-015-0532-3

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