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Evaluation of the Surface Roughness in Dental Ceramics Submitted to Different Finishing and Polishing Methods

  • Original Article
  • Published:
The Journal of Indian Prosthodontic Society

Abstract

Ceramic restorations have been widely used in dentistry. These restorations often require intraoral adjustment with diamond burs after their cementation causing increasing roughness of the ceramic surface. Consequently some finishing and polishing methods have been used to minimize this occurrence. The aim of this study is to evaluate the roughness of the ceramic surfaces submitted to different finishing and polishing methods. 144 specimens of VITAVM®7, VM®9 and VM®13 (VITA Zahnfabrik) ceramics were fabricated and submitted to grinding using diamond burs. They were then divided into 15 groups (five of each ceramic type). Groups 1, 6 and 11—positive control (Glaze); Groups 2, 7 and 12—negative control (no polishing); Groups 3, 8 and 13—polished with abrasive rubbers (Edenta), felt disc and diamond polishing past; Groups 4, 9 and 14—polished with abrasive rubbers (Shofu), felt disc and diamond polishing past; Groups 5, 10 and 15—polished with aluminum oxide discs (Sof-Lex, 3M-ESPE), felt disc and diamond polishing paste. The roughness of the samples surfaces were measured using the rugosimeter Surfcorder SE 1700 and the data were submitted to statistical analysis using ANOVA and Tukey test at a level of significance of 5 %. There was statistically significance difference between the positive control groups and the other groups in all the ceramic types. Mechanical finishing and polishing methods were not able to provide a surface as smooth as the glazed surface for the tested ceramics. To assist dental practitioners to select the best finishing and polishing methods for the final adjustment of the ceramic restorations.

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Authors and Affiliations

  1. Department of Health, State University of Bahia Southwestern, Jequié, Bahia, Brazil

    Alex C. Vieira

  2. Department of Health, State University of Feira de Santana, Feira de Santana, Bahia, Brazil

    Mario C. S. Oliveira

  3. Department of Health, Federal University of Bahia, Salvador, Bahia, Brazil

    Emilena M. C. X. Lima

  4. Department of Diagnostic Sciences, Dental School, University of Maryland, Baltimore, MD, USA

    Isabel Rambob

  5. Department of Health, UNICSUL, São Paulo, São Paulo, Brazil

    Mariana Leite

  6. Rua Sargento Astrolábio, 207/902, Pituba, Salvador, Bahia, 41810-340, Brazil

    Alex C. Vieira

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  1. Alex C. Vieira
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  2. Mario C. S. Oliveira
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  3. Emilena M. C. X. Lima
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  4. Isabel Rambob
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  5. Mariana Leite
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Correspondence to Alex C. Vieira.

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Vieira, A.C., Oliveira, M.C.S., Lima, E.M.C.X. et al. Evaluation of the Surface Roughness in Dental Ceramics Submitted to Different Finishing and Polishing Methods. J Indian Prosthodont Soc 13, 290–295 (2013). https://doi.org/10.1007/s13191-013-0261-y

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  • DOI: https://doi.org/10.1007/s13191-013-0261-y

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