Effect of various solutions on the removal of orange-brown precipitate formed by interaction of sodium hypochlorite and chlorhexidine with or without ultrasonic activationZ

Keles A., Ors S. A., Yilmaz Z.

NIGERIAN JOURNAL OF CLINICAL PRACTICE, vol.23, no.3, pp.381-385, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 3
  • Publication Date: 2020
  • Doi Number: 10.4103/njcp.njcp_527_19
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Page Numbers: pp.381-385
  • Keywords: Chlorhexidine, endodontics, irrigant interactions, root canal preparation, root canal therapy, sodium hypochlorite, CALCIUM HYDROXIDE, PARA-CHLOROANILINE, SPECTROSCOPIC ANALYSIS, ANTIMICROBIAL ACTIVITY, PHYTIC ACID, ROOT CANALS, IRRIGATION, GLUCONATE, EFFICACY, PREVENT
  • Hacettepe University Affiliated: Yes


Objectives: This study aimed to compare the effect of different solutions on the removal of orange-brown precipitate with or without ultrasonic activation. Materials and Methods: One hundred and twenty extracted maxillary anterior teeth were instrumented. In experimental groups (n = 10), canals were flushed with 17% EDTA, 10% citric acid, 1% phytic acid, 96% alcohol and distilled water either using syringe irrigation or ultrasonic activation, after creating orange-brown precipitate. Teeth were sectioned longitudinally and subjected to stereomicroscopic analysis. The amount of precipitate was scored and the data were analyzed (P = 0.05). Results: There were no differences detected among the tested solutions (P > 0.05). There was a significant difference between ultrasonically activated irrigation and syringe irrigation for EDTA and distilled water in coronal, middle portions (P < 0.05). Conclusions: Ultrasonic activation significantly improved the precipitate removal capacity of EDTA and DW. Tested solutions were similarly effective regarding the removal of the precipitate.