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Effect of sodium hypochlorite and calcium hypochlorite on the apical sealing ability of endodontic sealers
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Keywords

Dental leakage
Calcium compounds
Sodium hypochlorite
Root canal obturation

How to Cite

1.
Carlotto IB, Brum NF, Pauletto G, Rosa LS da, Bier CAS. Effect of sodium hypochlorite and calcium hypochlorite on the apical sealing ability of endodontic sealers. Braz. J. Oral Sci. [Internet]. 2024 Mar. 11 [cited 2024 Dec. 8];23(00):e242700. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8672700

Abstract

Aim: This study aimed to compare the influence of sodium hypochlorite (NaOCl) and calcium hypochlorite [Ca(OCl)2 ] on the apical sealing capacity of AH Plus (Dentsply Maillefer) and Bio-C Sealer (Angelus) endodontic sealers. Methods: Sixty permanent human lower incisors were randomly allocated (http://www.randomized.org), according to the irrigant used, into three groups (n=20): 0.9% sodium chloride (NaCl/Control); 2.5% NaOCl; and 2.5% Ca(OCl)2 . The root canal was prepared with rotary files under 10 mL of the solution corresponding to the experimental group. Each group was subdivided into two (n=10) according to the sealer used for filling: AH Plus (Dentsply Maillefer) or Bio-C Sealer (Angelus). Then, all samples were immersed in black India ink for one week. After the storage period, the roots were then grooved longitudinally and split, and the ink penetration was measured from the apical part to the coronal part of the root canal into which the ink penetrated using a stereomicroscope. Data were analyzed by one-way ANOVA and Tukey’s post-hoc tests. Results: There was no statistical difference in ink penetration between the different endodontic sealers tested for the same irrigating solution (p > 0.05). However, when the Bio-C Sealer (Angelus) was used, the group treated with 2.5% Ca(OCl)2 was associated with lower values of apical leakage, compared to 2.5% NaOCl (p < 0.05). For the AH Plus sealer (Dentsply Maillefer), there was no difference between the irrigants (p > 0.05). Conclusions: Associating Ca(OCl)2 irrigant with Bio-C Sealer (Angelus) seems to be a good option to reduce apical leakage.

https://doi.org/10.20396/bjos.v23i00.8672700
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Copyright (c) 2024 Israel Bangel Carlotto, Natália Franco Brum, Guilherme Pauletto, Lucas Saldanha da Rosa, Carlos Alexandre Souza Bier

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