Aboudoura, M., Abdel Rahman, R., Abuelezz, A. (2024). The Effect of Silver Nano-Irrigant and Erbium Chromium: YSGG Laser on the Smear Layer Removal and Microhardness of Root Canal Dentine "In Vitro Study". Journal of Fundamental and Clinical Research, 4(2), 215-231. doi: 10.21608/jfcr.2024.292781.1083
Moustafa Aboudoura; Reem Ahmed Lutfy Abdel Rahman; Ahmed Hussein Abuelezz. "The Effect of Silver Nano-Irrigant and Erbium Chromium: YSGG Laser on the Smear Layer Removal and Microhardness of Root Canal Dentine "In Vitro Study"". Journal of Fundamental and Clinical Research, 4, 2, 2024, 215-231. doi: 10.21608/jfcr.2024.292781.1083
Aboudoura, M., Abdel Rahman, R., Abuelezz, A. (2024). 'The Effect of Silver Nano-Irrigant and Erbium Chromium: YSGG Laser on the Smear Layer Removal and Microhardness of Root Canal Dentine "In Vitro Study"', Journal of Fundamental and Clinical Research, 4(2), pp. 215-231. doi: 10.21608/jfcr.2024.292781.1083
Aboudoura, M., Abdel Rahman, R., Abuelezz, A. The Effect of Silver Nano-Irrigant and Erbium Chromium: YSGG Laser on the Smear Layer Removal and Microhardness of Root Canal Dentine "In Vitro Study". Journal of Fundamental and Clinical Research, 2024; 4(2): 215-231. doi: 10.21608/jfcr.2024.292781.1083
The Effect of Silver Nano-Irrigant and Erbium Chromium: YSGG Laser on the Smear Layer Removal and Microhardness of Root Canal Dentine "In Vitro Study"
1Postgraduate Researcher, Conservative Department (Endodontics Department), Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt
2Endodontic Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.
3Lecturer of Endodontics, Conservative Dentistry (Endodontics Department), Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt.
Abstract
Background: Root canal treatment involves irrigation protocols that affected both smear layer removal and microhardness of root canal dentine. Aim: Evaluate and compare the effect of using Silver Nanoparticles irrigant (AgNP), Erbium Chromium: YSGG Laser (Er;Cr: YSGG) and their combination on the removal of smear layer and microhardness of root canal dentine compared to 5.25% NaOCl and 17% EDTA. Materials and methods: Forty dentin samples from mandibular single canaled premolars were selected, where twenty samples were allocated for each assessment. For microhardness, a baseline score was gained before irrigation using Vickers microhardness tester. Samples for each assessment were randomly allocated in 4 groups (n=5): Group 1 (5.25% NaOCl + 17% EDTA), Group 2 (Er;Cr: YSGG), Group 3 (AgNP) and Group 4 (Er;Cr: YSGG + AgNP). Smear layer removal samples were examined under Environmental Scanning Electron Microscope (ESEM) at magnification 1000X to obtain a total average score out of 5 for each sample. Similarly, microhardness samples were assessed for after irrigation scores to obtain a percent change in microhardness. Results: Group 4 showed statistically significant the highest score in the amount of smear layer left behind after irrigation than 3 and 2. Groups 1 and 4 reported statistically significant less percent decrease in microhardness than groups 2 and 3. Conclusion: Neither AgNP and Er;Cr: YSGG per se nor their combination was effective in removing smear layer. AgNP and Er;Cr: YSGG per se have decreased the microhardness of root canal dentine while their combination was similar to 5.25% NaOCl and 17%EDTA.
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