Analysis of root canal organic tissue dissolution capacity according to the type of irrigation solution and agitation technique

Authors

  • Kiany Scarssi Nunes Faculdade da Serra Gaúcha
  • Letícia Feron Faculdade da Serra Gaúcha
  • Francisco Montagner Universidade Federal do Rio Grande do Sul
  • Tiago André Fontoura de Melo Faculdade da Serra Gaúcha

DOI:

https://doi.org/10.20396/bjos.v15i1.8647128

Keywords:

Endodontics. Dissolution. Sodium hypochlorite. Chlorhexidine. Vibration.

Abstract

Aim: To analyze the root canal organic tissue dissolution capacity promoted by irrigating solutions, with or without the use of different agitation techniques. Methods: Bovine pulp tissue fragments were initially weighed. The following irrigating solutions were tested: 2.5% sodium hypochlorite, 2% chlorhexidine digluconate solution, and distilled water. The irrigating protocols were: immersion, mechanical agitation with endodontic files, and ultrasonic or sonic systems (Endoactivactor® and Easy Clean®). At the end of the protocols, the pulps were weighed to determine their final weight. For comparison, the average percentage of tissue dissolution in relation to the groups was analyzed using the Kruskal-Wallis nonparametric test complemented by multiple comparisons test. The significance level was set at 5%. Results: Among the irrigation solutions, 2.5% sodium hypochlorite showed a higher dissolving power than 2% chlorhexidine digluconate and distilled water. Furthermore, ultrasonic and sonic systems were more effective irrigating protocols than immersion and mechanical agitation with endodontic files. Conclusions: The combination of sodium hypochlorite with an agitation system promotes a greater degree of tissue degradation.

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Author Biographies

Kiany Scarssi Nunes, Faculdade da Serra Gaúcha

Cirurgiã Dentista graduada pela Faculdade da Serra Gaúcha.

Letícia Feron, Faculdade da Serra Gaúcha

Graduanda de odontologia em Caxias do Sul, RS pela FSG - Faculdade da Serra Gaúcha

Francisco Montagner, Universidade Federal do Rio Grande do Sul

Professor Adjunto IV, Departamento de Odontologia Conservadora, Área de Endodontia, Universidade Federal do Rio Grande do Sul (UFRGS, RS). Graduou-se em Odontologia pela Universidade Federal de Santa Maria (2004). É Especialista em Endodontia, Mestre e Doutor em Clínica Odontológica, Área de Endodontia (FOP/UNICAMP). Participou de programa de estágio no exterior na The Ohio State University (Columbus, OH, EUA), onde trabalhou com técnicas de caracterização de comunidades microbianas. Participa como pesquisador colaborador no BONELab, The University of Texas at Dallas (Dallas, TX, EUA). Desenvolve atividades de ensino e pesquisa no curso de graduação, ministrando as disciplinas da áreas de Clínica Odontológica, Endodontia e Bioquímica e Microbiologia Oral.

Tiago André Fontoura de Melo, Faculdade da Serra Gaúcha

Graduado em Odontologia pela Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS). Especialista e Mestre em Endodontia pela Universidade Luterana do Brasil (ULBRA). Doutor em Endodontia pela PUCRS. Atualmente é Professor Adjunto da Faculdade de Odontologia da Universidade Federal do Rio Grande do Sul (UFRGS).

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Published

2016-10-13

How to Cite

1.
Nunes KS, Feron L, Montagner F, Melo TAF de. Analysis of root canal organic tissue dissolution capacity according to the type of irrigation solution and agitation technique. Braz. J. Oral Sci. [Internet]. 2016 Oct. 13 [cited 2022 Aug. 12];15(1):70-4. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8647128

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