The effect of nanoparticle addition to a bioceramic sealer on its intra-tubular penetration. | ||
| Egyptian Dental Journal | ||
| Article 5, Volume 68, Issue 4 - Serial Number 5, October 2022, Pages 3905-3913 PDF (907.55 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/edj.2022.144713.2148 | ||
| Authors | ||
| Nadien Ashraf Thabet* 1; Medhat Elfaramawy2; sarah fahmy3 | ||
| 1Endodontic department, faculty of dentistry, Ain shams university, Cairo, Egypt | ||
| 2Professor, Endodontic Dep., Faculty of Dentistry, Ainshams Univ | ||
| 3Lecturer in Endodontic Department, Faculty of Dentistry, Ainshams Univ. | ||
| Abstract | ||
| Introduction: The aim of this study is to evaluate the effect of titanium dioxide nanoparticles (TiO2NP) addition on Endoseal MTA intra-tubular penetration after cleaning and shaping of root canal with different irrigation protocols using the confocal laser scanning microscopy (CLSM). Methods: 56 human mandibular premolars were used. Access cavities were opened. After biomechanical preparation, teeth were divided equally into 2 groups (n=28) G1 (Endoseal MTA without TiO2NP) and G2 (Endoseal MTA with 1 wt% of TiO2NP). Each group was further subdivided equally into 2 sub-groups (n=14): sub-group N (5.25% NaOCL) and sub-group T (Green tea). Each irrigant was further subdivided equally into 2 sub-groups (n=7): sub-group CI (conventional needle irrigation) and sub-group PUI (Passive ultrasonic irrigation). Sealers were mixed with the Rhodamine B fluorescent dye for analysis of sealer penetration under the CLSM at 10x magnification and obturation was carried out in lateral condensation technique. From each root 3 (1 mm) slices were obtained representing the coronal, middle and apical thirds. Results were tabulated and statistically analyzed. Results: Both of NaOCl and PUI groups had a significantly higher value of sealer intra-tubular penetration than green tea and CI groups in both types of sealer. Endoseal MTA sealer without TiO2NP had a higher value of intra-tubular penetration than Endoseal MTA sealer with TiO2NP yet the difference was not statistically significant. Conclusion: Both of NaOCl and PUI permit a significantly greater sealer intra-tubular penetration compared to green tea and CI. Endoseal MTA exhibited greater intra-tubular penetration compared to Endoseal MTA with TiO2NP. | ||
| Keywords | ||
| Sealer intra-tubular penetration; Endoseal MTA; Titanium dioxide nanoparticles; confocal laser scanning microscopy | ||
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