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- Title
Sonic irrigation for removal of calcium hydroxide in the apical root canal: A micro-CT and light-coupled tracking analysis.
- Authors
Moon, Wonjoon; Chung, Shin Hye; Chang, Juhea
- Abstract
Objective: This study aimed to evaluate the efficacy of three sonic irrigation systems for removal of calcium hydroxide dressing from the apical root canal. Materials and methods: A total of 96 single-rooted teeth in three categories of root canal curvatures (straight: 0–5°, moderate: 6–20°, and severe: > 20°) were allocated to four groups: conventional needle irrigation, EndoActivator, EQ-S, and Vibringe. The root canals were instrumented using Protaper NEXT and filled with calcium hydroxide. After removal of calcium hydroxide, the remaining volume of calcium hydroxide was measured by micro-CT analysis. Data were compared among root canal curvatures and irrigation systems using the Kruskal-Wallis test and Mann-Whitney test (p <.05). The oscillating range of each irrigation system was measured using light-coupled motion tracking. Results: The volumes of calcium hydroxide remaining in the canals with severe curvature were significantly higher than in those of straight curvature (p <.05). In the canals of moderate or severe curvature, EQ-S showed the highest removal percentage, followed by EndoActivator, Vibringe, and needle irrigation (p <.05). Light-coupled tracking showed the largest oscillating range in EQ-S (p <.05). Conclusions: Sonically activated irrigation systems with a flexible tip can be beneficial for calcium hydroxide intracanal dressing removal in the curved apical canals.
- Subjects
CALCIUM hydroxide; DENTAL pulp cavities; X-ray computed microtomography; IRRIGATION; KRUSKAL-Wallis Test; CURVATURE
- Publication
PLoS ONE, 2022, Vol 17, Issue 6, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0268791