Influence of the calcium hydroxide paste vehicle on penetration into lateral canals

Autores

  • Amanda Sousa Vidal National Institute of Higher Education and Post-graduation Priest Gervásio – Pouso Alegre – MG – Brazil.
  • Daniele Aparecida Leão National Institute of Higher Education and Post-graduation Priest Gervásio – Pouso Alegre – MG – Brazil.
  • Fernanda Mota Guimarães National Institute of Higher Education and Post-graduation Priest Gervásio – Pouso Alegre – MG – Brazil.
  • Mariana Oliveira Gonçalves National Institute of Higher Education and Post-graduation Priest Gervásio – Pouso Alegre – MG – Brazil.
  • Raissa Freitas Pinheiro National Institute of Higher Education and Post-graduation Priest Gervásio – Pouso Alegre – MG – Brazil.
  • Tereza Cristina Rodrigues Cunha National Institute of Higher Education and Post-graduation Priest Gervásio – Pouso Alegre – MG – Brazil.
  • Marco Antonio Hungaro Duarte Department of Restorative Dentistry, Dental Materials and Endodontics – Bauru Dental School – University of São Paulo – Bauru – SP – Brazil.
  • Jussaro Alves Duque Department of Restorative Dentistry, Dental Materials and Endodontics – Bauru Dental School – University of São Paulo – Bauru – SP – Brazil.

DOI:

https://doi.org/10.14295/bds.2018.v21i3.1574

Resumo

Objective: The aim of this study was to use Micro computed tomography (micro-CT) to evaluate the influence of the type of vehicle associated with calcium hydroxide on its ability to penetrate simulated lateral canals. Material and methods: 30 acrylic blocks with simulated lateral canals comprising apical, middle and cervical thirds were used in the in vitro study. The blocks were divided into 3 groups (n = 10) according to the type of vehicle used (chlorhexidine, distilled water and propylene glycol) in the calcium hydroxide slurry, which was inserted in the respective group of simulated canals with a K# 30 file and then agitated with an ultrasonic tip. The blocks were scanned by micro-computed tomography (micro-CT) before and after insertion of the medication. The images obtained were reconstructed and analyzed to obtain the initial volume of lateral canals and the volume of medication that penetrated into them. Results: In the intragroup analysis, both distilled water and chlorhexidine 2% were observed to present statistical difference in all thirds of the canal. Propylene glycol showed no intragroup difference. In the inter-group analysis, the propylene glycol paste presented higher values of penetration into the simulated lateral canals than the other groups (p <0.05). Conclusion: Propylene glycol used as vehicle of the calcium hydroxide paste provided better penetration results in simulated lateral canals.


Keywords

Endodontics; Calcium hydroxide; Propylene glycol. 

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Publicado

2018-08-01

Como Citar

1.
Vidal AS, Leão DA, Guimarães FM, Gonçalves MO, Pinheiro RF, Cunha TCR, et al. Influence of the calcium hydroxide paste vehicle on penetration into lateral canals. BDS [Internet]. 1º de agosto de 2018 [citado 7º de outubro de 2025];21(3):282-7. Disponível em: https://ojs.ict.unesp.br/index.php/cob/article/view/1574

Edição

v. 21 n. 3 (2018): Jul. - Sep. / 2018 - Published Aug 2018

Seção

Artigos de Pesquisa Clínica ou Laboratorial

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