Comparative Evaluation of Antioxidant Effects of 25% Bamboo Salt and 3% Green Tea Extract on Push-out Bond Strength of AH Plus Sealer after Sodium Hypochlorite Irrigation: An Study.

CONTEXT

Sodium hypochlorite (NaOCl), a commonly used intracanal irrigant, adversely affects the organic content of dentin, impacting the bond strength of sealer to root dentin.

AIM

The aim of the study was to compare the antioxidant effects of 25% bamboo salt and 3% green tea extract on the push-out bond strength of AH Plus sealer after NaOCl irrigation.

SUBJECTS AND METHODS

Forty-five single-rooted mandibular premolars were selected, decoronated, and standardized to a length of 12 mm. During the canal preparation process, ProTaper Next rotary files were used, with each step accompanied by the irrigation of 5 ml of 5.25% NaOCl. Following the instrumentation, the canals were flushed with an additional 5 ml of 5.25% NaOCl and 17% ethylenediaminetetraacetic acid. The specimens were then categorized into three groups ( = 15 each): Group 1, treated with saline; Group 2, treated with a 25% bamboo salt solution; and Group 3, treated with a 3% green tea extract solution. From the coronal and middle thirds of each root, 1.5 mm thick slices were prepared. These slices were then tested for push-out bond strength using a universal testing machine.

STATISTICAL ANALYSIS

The data collected were subjected to one-way analysis of variance, followed by Tukey's analysis for detailed examination.

RESULTS

The use of 5.25% NaOCl resulted in a significant reduction in the bond strength of AH Plus to dentin ( < 0.05). Among the treated groups, the samples irrigated with 3% green tea extract exhibited a notably higher push-out bond strength compared to those treated with 25% bamboo salt.

CONCLUSION

Within the limitations of this study, all experimental groups showed significant changes in push-out bond strength after antioxidant treatment.