Effect of a novel laser-initiated photoacoustic activation of a solvent or sodium hypochlorite in the removal of filling remnants after retreatment of curved root canals
| Autor: | Gabrijela Kapetanović Petričević, Marko Katić, Adriana Ferenac, Ivica Anić, Gianluca Plotino, Dragana Gabrić, Ivona Bago |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Photosensitizing Agents
Ultrasonic irrigation Sodium Hypochlorite Root canal Biophysics Activation Filling remnants Retreatment Solvent Photoacoustic imaging in biomedicine Lasers Solid-State Dermatology Root Canal Filling Materials chemistry.chemical_compound medicine.anatomical_structure Photochemotherapy Oncology chemistry Sodium hypochlorite Solvents medicine Pharmacology (medical) Dental Pulp Cavity Root Canal Preparation Nuclear chemistry |
| Popis: | Background This study aimed to evaluate the effect of Er:YAG laser-initiated shockwave-enhanced emission of photoacoustic streaming (SWEEPS®) and passive ultrasonic irrigation (PUI) combining thymol-based solvent or sodium hypochlorite (NaOCl) in the removal of filling remnants from curved canals. Methods Forty-eight curved root canals were instrumented and filled with an epoxy-resin-based sealer and gutta-percha. The canals were retreated with a Wave One Gold primary file (tip size 25; variable taper) and sodium hypochlorite (NaOCl). After the retreatment, the samples were randomly divided into four groups according to the additional irrigation protocol: PUI/NaOCl, PUI/solvent, SWEEPS®/NaOCl or SWEEPS®/solvent. The volume of filling material in root canal was measured after root canal filling, after mechanical retreatment, after final irrigation protocol and after additional irrigation protocol, using micro-CT. The results were analyzed using Kruskal-Wallis test with the post-hoc Mann-Whitney U test and Wilcoxon test (α=0.05). Results In the PUI group, irrigation with the solvent or NaOCl resulted in similar filling reduction (p = 0.224). In the SWEEPS® group, irrigation with NaOCl resulted in a significantly greater filling reduction compared to the solvent (p = 0.021). The SWEEPS®/NaOCl group was more effective than the PUI/NaOCl group (p = 0.008). No significant differences were found between PUI/solvent and SWEEPS® groups (p>0.05) and PUI/NaOCl and SWEEPS®/solvent group (p>0.05). Conclusion Although all tested protocols improved the removal of filling remnants from curved root canal, the SWEEPS® was more successful than PUI when NaOCl was used. Both tested techniques showed similar efficacy when in combination with the solvent. |
| Databáze: | OpenAIRE |
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