We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
International Poster Journal of Dentistry and Oral Medicine
Login:
username:

password:

Plattform:

Forgotten password?

Registration

Int Poster J Dent Oral Med 21 (2019), OMD/PDA     15. Jan. 2020
Int Poster J Dent Oral Med 21 (2019), OMD/PDA  (15.01.2020)

Supplement, Poster 2253, Language: English


Evaluation Of Removal of Calcium Hydroxide Mixed with Chlorhexidine and Detection of Precipitate
Teles, Ana Moura / Remoaldo, Marina Caetano / Guimarães, Duarte Antunes / Soares, Bárbara Sá / Santos, João Miguel
Introduction: Intracanal medication (ICM) helps to reduce the microorganisms responsible for endodontic infections and to control symptomatology.
Objectives: To compare the effectiveness of different solutions - Sodium Hypochlorite 3% (NaOCl), Ethylene Diamin TetraAcetic Acid 17% (EDTA) and Citric Acid 10% (CA) - in removal of Calcium Hydroxide powder mixed with 2% Chlorhexidine gel (CH/CHX) and detection of precipitate.
Materials and Methods: 45 single root teeth, 3 groups (n = 15), inserted in a silicone base, were instrumented with ProTaper Universal® files (Dentsply Sirona, Switzerland) up to F3 and divided in halves with a microtome. Two standardized grooves (coronal and apical) were filled with CH/CHX and, for their removal, NaOCl or EDTA or CA activated with E1- Irrisonic Helse Ultrasonic® tip (Helse, São Paulo, Brazil) were used. The grooves were photographed before and after application of CH/CHX. The remaining CH/CHX was evaluated using a scoring system (4 levels). Data were statistically analyzed using the Kruskal-Wallis test and the U-Mann-Whitney test with Bonferroni correction (p <0.05) and using the R system (version 3.4.2).
Results: CA was higher than NaOCl and EDTA (p <0.05). There were no significant differences between the other groups (p> 0.05). Only and always, in the NaOCl group, an orange-brown precipitate was observed.
Discussion: The presence of ICM may compromise the adhesion of the filling material to dentinal walls. In this sense, it's important to optimize their removal. A precipitate formation should be avoided.
Conclusions: None of the solutions tested was able to completely remove the ICM; however, CA proved to be more effective than NaOCl and EDTA, and this difference was statistically significant.
Clinical Implications: Removal of the ICM in test should rather be done with CA. The use of NaOCl should be avoided if the ICM contains Chlorhexidine.

Keywords: calcium hydroxide, chlorhexidine digluconate, removal, EDTA, sodium hypochlorite, citric acid

Conference/Exhibition:
28th Annual Meeting of the Portuguese Dental Association 2019 (OMD)
14.-16. November 2019
Lisbon, Portugal