Comparison of the push-out bond strength of AH Plus sealer to dentin after using different herbal irrigation solutions as the final rinse

• Published in: PloS one Vol. 17; no. 11; p. e0276666
• Main Authors: Nabavizadeh, Mohammadreza, Sobhnamayan, Fereshte, Sedigh-Shams, Mahdi, Liaghat, Sepideh
• Format: Journal Article
• Language: English
• Published: San Francisco Public Library of Science 02.11.2022; Public Library of Science (PLoS)
• Subjects: Antimicrobial agents; Bonding strength; Cinnamomum zeylanicum; Composition; Contact angle; Dental acrylic resins; Dental resins; Dental roots; Dentin; Distilled water; Endodontics; Epoxy resins; Essential oils; Failure analysis; Failure modes; Health aspects; Materials; Minimum inhibitory concentration; Oils & fats; Patient outcomes; Pit and fissure sealants (Dentistry); Premolars; Properties; Root canal therapy; Sealing compounds; Sodium; Sodium hypochlorite; Teeth; Variance analysis; Iran; Germany
• DOI: 10.1371/journal.pone.0276666
• ISSN: 1932-6203

The aim of the present study was to evaluate the push-out bond strength of AH Plus sealer to dentin treated with the essential oils of Cumimum cyminum and Cinnamomum zeylanicum as herbal final irrigants. Forty human mandibular first premolars were selected. After smear layer removal, the samples were divided into 4 groups and irrigated with experimental solutions for 1 min and later with distilled water. G1: Cinnamomum zeylanicum (CZ) in minimum inhibitory concentration (MIC); G2: Sodium hypochlorite 2.5%; G3: Sodium hypochlorite in MIC; G4: Cuminum cyminum (CC) in MIC. After obturation, the roots were sectioned in order to obtain 1-mm discs for push-out assessment. The push-out test was performed using a universal testing machine. The slices were examined using a stereomicroscope at 30× to determine the mode of failure. The data were analyzed using one-way analysis of variance and Tukey’s post-hoc test. The teeth irrigated with CZ showed significantly lower push-out resistance than those irrigated with NaOCl 2.5% and NaOCl at MIC. The other groups had no significant difference. The modes of failure were predominantly mixed. Under the limitations of the present study, CC does not have adverse effects on the bond strength of AH Plus and can be used as a good alternative for currently used final irrigants.