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Micro-CT assessment of the shaping ability of four root canal instrumentation systems in oval-shaped canals.
Zuolo, M L; Zaia, A A; Belladonna, F G; Silva, E J N L; Souza, E M; Versiani, M A; Lopes, R T; De-Deus, G.
Afiliación
  • Zuolo ML; Endodontic Division, Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil.
  • Zaia AA; Endodontic Division, Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil.
  • Belladonna FG; Department of Endodontics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
  • Silva EJNL; Department of Endodontics, Grande Rio University, Duque de Caxias, Rio de Janeiro, Brazil.
  • Souza EM; Department of Dentistry II, Federal University of Maranhão, São Luís, Maranhão, Brazil.
  • Versiani MA; Department of Restorative Dentistry, Dental School of Ribeirão Preto, University of São Paulo, São Paulo, São Paulo, Brazil.
  • Lopes RT; Nuclear Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • De-Deus G; Department of Endodontics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Int Endod J ; 51(5): 564-571, 2018 May.
Article en En | MEDLINE | ID: mdl-28667674
AIM: To compare the shaping ability of four root canal instrumentation systems in oval-shaped canals using micro-computed tomographic analysis. METHODOLOGY: Forty anatomically matched mandibular incisors were scanned and assigned to four groups (n = 10), according to the canal preparation protocol: BioRace, Reciproc, Self-Adjusting File (SAF) and TRUShape systems. After canal instrumentation, the specimens were rescanned, and the registered pre- and postoperative datasets were examined to evaluate the percentages of accumulated hard-tissue debris, untouched canal walls and dentine removed. Kruskal-Wallis and Mann-Whitney U-tests with Bonferroni correction were used to compare the variables in the groups (α = 5%). RESULTS: The preparation techniques did not affect the percentage of accumulated hard-tissue debris (P = 0.126). The percentage of untouched canal areas was significantly higher for BioRace (32.38%)compared to Reciproc (18.95%) and SAF (16.08%) systems (P < 0.05). Reciproc removed significantly more dentine (4.18%) than BioRace (2.21%) and SAF (2.56%) (P < 0.05). The TRUShape system had intermediate results for both untouched canal walls (19.20%) and dentine removed (3.77%), with no significant difference compared to BioRace, Reciproc and SAF systems. CONCLUSIONS: The preparation techniques resulted in the same level of accumulated hard-tissue debris. Compared to the other tested systems, BioRace was associated with more untouched canal walls and Reciproc produced the greatest amount of removed dentine. Although it touched more of the root canal walls, the SAF system removed less dentine, whereas TRUShape had intermediate results for these same parameters. None of the systems tested were able to provide optimal shaping ability in oval-shaped canals.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Obturación del Conducto Radicular / Cavidad Pulpar Límite: Humans Idioma: En Revista: Int Endod J Año: 2018 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Obturación del Conducto Radicular / Cavidad Pulpar Límite: Humans Idioma: En Revista: Int Endod J Año: 2018 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido