Impact of Green Tea Extract on Intraradicular Dentin Wettability and Bond Strength of Resin-Based Sealer Following Two Chelating Agents

Authors

Hagar A. Bastawy, Associate Professor of Endodontics, Endodontic Department, Faculty of Dentistry, King Abdulaziz University (KAU), Jeddah, Saudi Arabia, and Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt.Follow
Rania E. Bayoumi, Assistant Professor of Dental Biomaterials, Dental Biomaterials Department, Faculty of Dental Medicine for Girls, AL-Azhar University, Cairo, EgyptFollow
Asmaa Abd El- Hady, Lecturer of Endodontics, Endodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, EgyptFollow
Shaymaa I. Habib, Assistant Professor of Dental Biomaterials, Dental Biomaterials Department, Faculty of Dentistry, Cairo University, Cairo, EgyptFollow

Corresponding Author

Bastawy, Hagar A.

Document Type

Original Study

Abstract

Purpose: To evaluate the effect of 3% green tea extract (GTE) on wettability, depth of penetration, and push out bond strength (PBS) of AH Plus sealer to intraradicular dentin following the use of 0.2% Nano chitosan or 17% EDTA. Materials and methods: Twenty human radicular dentin segments were used for wettability assessment. Following immersion in 2.6% NaOCl solution, samples were divided into 2 groups (n=10) according to the chelating agent used: group I: 0.2% Nano chitosan, and group II: 17% EDTA, each used for 3 min, then the contact angle (CA) was measured. The samples were further immersed in 3% GTE solution for 5 min followed by CA measurement. Twenty human mandibular premolars were prepared up to # X4 ProTaper Next files, then divided into two groups as mentioned previously. Each group was subdivided into two subgroups based on the final flush used (n=5); subgroups A and B; no treatment, and 3% GTE, respectively. Samples were obturated by cold lateral compaction using AH Plus sealer and gutta-percha. PBS was measured using a universal testing machine and sealer penetration was assessed using confocal laser scanning microscopy. Results: Using 3% GTE following the use of 0.2% Nano chitosan significantly increased the wettability and PBS of AH Plus sealer to intraradicular dentin, while its use following 17% EDTA significantly decreased the wettability and PBS of AH Plus sealer. Using GTE increased the maximum depth of AH Plus sealer penetration into the dentinal tubules. Conclusion: GTE improved the wettability, depth of penetration, and push out bond strength of AH Plus sealer to intraradicular dentin treated with Nano-chitosan. Nevertheless, it adversely affected those properties of AH Plus sealer to EDTA-treated dentin.

Keywords

Green tea extract; Chitosan nanoparticles; wettability; AH Plus

How to Cite This Article

Bastawy, Hagar A.; Bayoumi, Rania E.; Hady, Asmaa Abd El-; and Habib, Shaymaa I. (2021) "Impact of Green Tea Extract on Intraradicular Dentin Wettability and Bond Strength of Resin-Based Sealer Following Two Chelating Agents," Al-Azhar Journal of Dentistry: Vol. 8: Iss. 4, Article 10.
DOI: https://doi.org/10.21608/adjg.2021.106129.1457

Subject Area

Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)