nfluence of phosphate buffered saline on the bond strength of endodontic cement to dentin

Authors

  • Bruna Casagrande Cechella Universidade Federal de Santa Catarina - UFSC
  • Josiane de Almeida Universidade Federal de Santa Catarina - UFSC
  • Mara Cristina Santos Felippe Universidade Federal de Santa Catarina - UFSC
  • Cleonice da Silveira Teixeira Universidade Federal de Santa Catarina - UFSC
  • Eduardo Antunes Bortoluzzi Universidade Federal de Santa Catarina - UFSC
  • Wilson Tadeu Felippe Universidade Federal de Santa Catarina - UFSC

DOI:

https://doi.org/10.20396/bjos.v14i2.8640826

Keywords:

Endodontics, Dental materials, Dentin

Abstract

Aim: To analyze the influence of exposure and time of exposure to phosphate buffered saline (PBS) on the push-out bond strength (BS) of Biodentine to dentine. Methods: Eighty 2-mm-thick dentin discs were obtained from transversal sections of human teeth roots. The space of the canal was enlarged using #2–#5 Gates-Glidden burs to obtain 1.3-mm-diameter standardized cavities. The discs were immersed in 17% EDTA followed by 1% NaOCl and dried. The spaces of the canals were filled with Biodentine and the samples were divided into 2 groups (n=40) according to the storage: G1: exposure to moistened cotton pellet; G2: exposure to PBS. After 30 min, 1, 3 and 28 days, 10 samples of each group were subjected to the push-out test. Data were analyzed using ANOVA and Tukey test (p < 0.05). Results: The specimens exposed to PBS had lower BS (p < 0.05), except for the 1-day period (p = 0.6017). In specimens of Group 1 the BS increased up to 3 days (p < 0.05). In specimens in Group 2, the BS increased from 30 min to 1 day (p < 0.0001) and remained stable up to 3 days (p = 0.9876). At 28 days, a significant decrease was observed in the BS values of both groups (p < 0.05). Conclusions: The exposure of Biodentine to PBS led to lower BS values. In general, the BS increased gradually up to 3 days and reduced at 28 days.

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Author Biographies

Bruna Casagrande Cechella, Universidade Federal de Santa Catarina - UFSC

Universidade Federal de Santa Catarina - UFSC, Faculdade de Odontologia, Departamento de Endodontia

Josiane de Almeida, Universidade Federal de Santa Catarina - UFSC

Universidade Federal de Santa Catarina - UFSC, Faculdade de Odontologia, Departamento de Endodontia

Mara Cristina Santos Felippe, Universidade Federal de Santa Catarina - UFSC

Universidade Federal de Santa Catarina - UFSC, Faculdade de Odontologia, Departamento de Endodontia

Cleonice da Silveira Teixeira, Universidade Federal de Santa Catarina - UFSC

Universidade Federal de Santa Catarina - UFSC, Faculdade de Odontologia, Departamento de Endodontia

Eduardo Antunes Bortoluzzi, Universidade Federal de Santa Catarina - UFSC

Universidade Federal de Santa Catarina - UFSC, Faculdade de Odontologia, Departamento de Endodontia

Wilson Tadeu Felippe, Universidade Federal de Santa Catarina - UFSC

Universidade Federal de Santa Catarina - UFSC, Faculdade de Odontologia, Departamento de Endodontia

Published

2015-07-01

How to Cite

1.
Cechella BC, Almeida J de, Felippe MCS, Teixeira C da S, Bortoluzzi EA, Felippe WT. nfluence of phosphate buffered saline on the bond strength of endodontic cement to dentin. Braz. J. Oral Sci. [Internet]. 2015 Jul. 1 [cited 2022 Nov. 26];14(2):126-9. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640826

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