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Application of two segmentation protocols during the processing of virtual images in rapid prototyping: ex vivo study with human dry mandibles

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Clinical Oral Investigations Aims and scope Submit manuscript

Abstract

Objectives

The aim of this study was to evaluate the accuracy of virtual three-dimensional (3D) reconstructions of human dry mandibles, produced from two segmentation protocols (“outline only” and “all-boundary lines”).

Materials and methods

Twenty virtual three-dimensional (3D) images were built from computed tomography exam (CT) of 10 dry mandibles, in which linear measurements between anatomical landmarks were obtained and compared to an error probability of 5 %.

Results

The results showed no statistically significant difference among the dry mandibles and the virtual 3D reconstructions produced from segmentation protocols tested (p = 0,24).

Conclusions

During the designing of a virtual 3D reconstruction, both “outline only” and “all-boundary lines” segmentation protocols can be used.

Clinical relevance

Virtual processing of CT images is the most complex stage during the manufacture of the biomodel. Establishing a better protocol during this phase allows the construction of a biomodel with characteristics that are closer to the original anatomical structures. This is essential to ensure a correct preoperative planning and a suitable treatment.

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Acknowledgments

The authors thank Research Support Foundation of the State of Bahia.

Conflict of interest

The authors declare that they have no conflict of interest.

Author information

Authors and Affiliations

  1. School of Dentistry, Federal University of Bahia, Avenida Araújo Pinho, n. 62 Canela, 41110-150, Salvador, Bahia, Brazil

    Eduardo Gomes Ferraz, Lucio Costa Safira Andrade, Aline Rode dos Santos, Vinicius Rabelo Torregrossa & Viviane Almeida Sarmento

  2. School of Dentistry, State University of São Paulo-Bauru, Alameda Doutor Octavio Pinheiro Brisolla, n. 9-75, Vila Universitária, 17012-101, Bauru, São Paulo, Brazil

    Izabel Regina Fischer Rubira-Bullen

  3. School of Dentistry, State University of Feira de Santana, Avenida Transnordestina, s/n, Novo Horizonte, 44036-900, Feira de Santana, Bahia, Brazil

    Viviane Almeida Sarmento

Authors
  1. Eduardo Gomes Ferraz
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  2. Lucio Costa Safira Andrade
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  3. Aline Rode dos Santos
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  4. Vinicius Rabelo Torregrossa
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  5. Izabel Regina Fischer Rubira-Bullen
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  6. Viviane Almeida Sarmento
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Corresponding author

Correspondence to Viviane Almeida Sarmento.

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Ferraz, E.G., Andrade, L.C.S., dos Santos, A.R. et al. Application of two segmentation protocols during the processing of virtual images in rapid prototyping: ex vivo study with human dry mandibles. Clin Oral Invest 17, 2113–2118 (2013). https://doi.org/10.1007/s00784-013-0921-7

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  • DOI: https://doi.org/10.1007/s00784-013-0921-7

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