Effects of Calcium Hypochlorite and Sodium Hypochlorite, as Root Canal Irrigants, on the Bond Strength of Glass Fiber Posts Cemented with Self-Adhesive Resin Cement

(2019) Effects of Calcium Hypochlorite and Sodium Hypochlorite, as Root Canal Irrigants, on the Bond Strength of Glass Fiber Posts Cemented with Self-Adhesive Resin Cement. Front Dent. pp. 214-223. ISSN 2676-296X (Electronic) 2676-296X (Linking)

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Abstract

Objectives: Calcium hypochlorite (Ca(OCl)2) is currently used as a root canal irrigant. The aim of this study was to compare the effects of calcium hypochlorite and sodium hypochlorite (NaOCl), as root canal irrigants, on the bond strength of posts cemented with a self-adhesive resin cement. Materials and Methods: In this in-vitro study, 40 maxillary central incisors with similar root lengths were decoronated. The teeth were randomly divided into five groups based on the irrigant used: Group 1: normal saline (control), Group 2: 2.5 sodium hypochlorite, Group 3: 5.25 sodium hypochlorite, Group 4: 2.5 calcium hypochlorite, and Group 5: 5 calcium hypochlorite. Root canal treatments were performed with Gates-Glidden drills and the irrigant corresponding to each group was used upon changing the file and for irrigating the post space. Then, glass fiber posts were cemented by BisCem self-adhesive cement. After applying 1,000 thermocycles at 5-55 degrees C, three samples of the mid-section of each root were prepared: one for scanning electron microscopy (SEM), and the rest for push-out testing. Data were analyzed with SPSS 23 software using one-way analysis of variance and post-hoc Tukey's test. Results: The highest and lowest mean bond strengths were recorded in groups 5 and 1, respectively. There was a significant difference between the 5 calcium hypochlorite group and the other groups (P<0.001). The difference between the other groups was not significant. Conclusion: The use of 5 calcium hypochlorite with self-adhesive cements increases the push-out bond strength of fiber posts to radicular dentin.

Item Type: Article
Keywords: Calcium Hypochlorite Dental Adhesives Dental Bonding Post and Core Technique Sodium Hypochlorite
Subjects: WU Dentistry. Oral Surgery
Divisions: Dental Materials Research Center
Faculty of Dental > Department of Oral & Maxillofacial Surgery
Faculty of Dental > Student Research Committee
Page Range: pp. 214-223
Journal or Publication Title: Front Dent
Journal Index: Pubmed
Volume: 16
Number: 3
Identification Number: https://doi.org/10.18502/fid.v16i3.1593
ISSN: 2676-296X (Electronic) 2676-296X (Linking)
Depositing User: Zahra Otroj
URI: http://eprints.mui.ac.ir/id/eprint/11650

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