Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin
Aim: To investigate the effectiveness of unconventional post space disinfection techniques, specifically Er:YAG laser, Temoporfin, and Carbon Nanoparticles (CNPs), in improving Martens hardness (MH), eliminating the smear layer (SL), and enhancing the push-out bond strength (PBS) of glass fiber post...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Photodiagnosis and Photodynamic Therapy |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1572100025000201 |
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| author | Abdulaziz Alsahhaf |
| author_facet | Abdulaziz Alsahhaf |
| author_sort | Abdulaziz Alsahhaf |
| collection | DOAJ |
| description | Aim: To investigate the effectiveness of unconventional post space disinfection techniques, specifically Er:YAG laser, Temoporfin, and Carbon Nanoparticles (CNPs), in improving Martens hardness (MH), eliminating the smear layer (SL), and enhancing the push-out bond strength (PBS) of glass fiber posts in canal dentin. Methods: An in vitro study was conducted utilizing 80 single-rooted extracted human teeth, which were decoronated and subjected to standardized root canal preparation. The teeth were equally distributed into four experimental groups: Group 1 (NaOCl + EDTA), Group 2 (Er: YAG laser + EDTA), Group 3 (Temoporfin + EDTA), and Group 4 (CNPs + EDTA). Each group underwent disinfection protocols followed by assessment of Martens hardness (MH) using nanoindentation testing, SL evaluation via scanning electron microscopy, and bond strength testing using a universal testing machine (UTM). Statistical analysis was performed using one-way ANOVA followed by Tukey's post hoc test to determine the level of significance among the groups. A significant level of p < 0.05 was established. Results: Group 4 (CNPs+17 % EDTA) showed a high MH value of (0.25 ± 0.02 GPa), significantly outperforming Groups 1 (0.13 ± 0.02 GPa) and 3 (0.10 ± 0.03 GPa). Group 2 (Er: YAG laser + 17 % EDTA) demonstrated superior smear layer removal across all sections, particularly in the apical third (1.94 ± 0.38). Push-out bond strength was highest in Group 2 (9.98 ± 0.14 MPa at the cervical level) and Group 4 (10.08 ± 0.21 MPa), while Group 1 showed a decrease in apical bond strength of (5.11 ± 0.19 MPa) Conclusion: CNPs and Er:YAG laser treatments, in comparison to Temoporfin and NaOCl, significantly increase dentin hardness and bond strength while reducing SL. This finding suggests that the incorporation of these innovative disinfection methods into endodontic procedures may enhance the durability and success of glass fiber post restorations. |
| format | Article |
| id | doaj-art-4fd54526615b4c93a7348e4021e4b0ad |
| institution | Kabale University |
| issn | 1572-1000 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Photodiagnosis and Photodynamic Therapy |
| spelling | doaj-art-4fd54526615b4c93a7348e4021e4b0ad2025-02-05T04:31:20ZengElsevierPhotodiagnosis and Photodynamic Therapy1572-10002025-04-0152104490Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentinAbdulaziz Alsahhaf0Department of Prosthetic Dental Sciences, College of Dentistry. King Saud University. Riyadh, PO Box-60169, Saudi ArabiaAim: To investigate the effectiveness of unconventional post space disinfection techniques, specifically Er:YAG laser, Temoporfin, and Carbon Nanoparticles (CNPs), in improving Martens hardness (MH), eliminating the smear layer (SL), and enhancing the push-out bond strength (PBS) of glass fiber posts in canal dentin. Methods: An in vitro study was conducted utilizing 80 single-rooted extracted human teeth, which were decoronated and subjected to standardized root canal preparation. The teeth were equally distributed into four experimental groups: Group 1 (NaOCl + EDTA), Group 2 (Er: YAG laser + EDTA), Group 3 (Temoporfin + EDTA), and Group 4 (CNPs + EDTA). Each group underwent disinfection protocols followed by assessment of Martens hardness (MH) using nanoindentation testing, SL evaluation via scanning electron microscopy, and bond strength testing using a universal testing machine (UTM). Statistical analysis was performed using one-way ANOVA followed by Tukey's post hoc test to determine the level of significance among the groups. A significant level of p < 0.05 was established. Results: Group 4 (CNPs+17 % EDTA) showed a high MH value of (0.25 ± 0.02 GPa), significantly outperforming Groups 1 (0.13 ± 0.02 GPa) and 3 (0.10 ± 0.03 GPa). Group 2 (Er: YAG laser + 17 % EDTA) demonstrated superior smear layer removal across all sections, particularly in the apical third (1.94 ± 0.38). Push-out bond strength was highest in Group 2 (9.98 ± 0.14 MPa at the cervical level) and Group 4 (10.08 ± 0.21 MPa), while Group 1 showed a decrease in apical bond strength of (5.11 ± 0.19 MPa) Conclusion: CNPs and Er:YAG laser treatments, in comparison to Temoporfin and NaOCl, significantly increase dentin hardness and bond strength while reducing SL. This finding suggests that the incorporation of these innovative disinfection methods into endodontic procedures may enhance the durability and success of glass fiber post restorations.http://www.sciencedirect.com/science/article/pii/S1572100025000201Martens hardnessCanal disinfectionTemoporfinCarbon nanoparticlesEr: YAG laserSmear layer |
| spellingShingle | Abdulaziz Alsahhaf Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin Photodiagnosis and Photodynamic Therapy Martens hardness Canal disinfection Temoporfin Carbon nanoparticles Er: YAG laser Smear layer |
| title | Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin |
| title_full | Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin |
| title_fullStr | Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin |
| title_full_unstemmed | Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin |
| title_short | Efficacy of canal disinfectants Temoporfin, carbon nanoparticles, and Er: YAG laser on martens hardness, smear layer removal, and bond strength of glass fiber posts to canal dentin |
| title_sort | efficacy of canal disinfectants temoporfin carbon nanoparticles and er yag laser on martens hardness smear layer removal and bond strength of glass fiber posts to canal dentin |
| topic | Martens hardness Canal disinfection Temoporfin Carbon nanoparticles Er: YAG laser Smear layer |
| url | http://www.sciencedirect.com/science/article/pii/S1572100025000201 |
| work_keys_str_mv | AT abdulazizalsahhaf efficacyofcanaldisinfectantstemoporfincarbonnanoparticlesanderyaglaseronmartenshardnesssmearlayerremovalandbondstrengthofglassfiberpoststocanaldentin |