ArticleAmerican journal of translational research2025
Effect of ultrasonic-assisted iRoot SP single-cone technique on root canal filling efficacy: an in vitro study.
Article in American journal of translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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1 citing paper in PubMed, 1 synthesis or guideline pooled it.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate and compare the sealing efficacy of three root canal filling techniques: AH plus with warm vertical compaction (WVC), iRoot SP with the single-cone technique, and ultrasonic-assisted iRoot SP single-cone technique.
methodsNinety premolars extracted for orthodontic purposes at Dalian Stomatological Hospital between March 2022 and March 2024 were collected. After standardized root canal preparation, specimens were randomly assigned to three groups: AH plus group (WVC technique + AH plus), iRoot SP group (single-cone + iRoot SP), and US-iRoot SP group (ultrasonic-assisted single-cone + iRoot SP). Apical microleakage was assessed using dye leakage tests. Sealer penetration at 3 mm, 5 mm, and 8 mm from the apex was evaluated using optical microscopy and confocal laser scanning microscopy (CLSM). Stereomicroscopy and scanning electron microscopy (SEM) were used to analyze sealer distribution within the root canal.
resultsThe US-iRoot SP group exhibited significantly less apical microleakage than the AH plus and iRoot SP groups (P<0.05). CLSM analysis revealed significantly greater average and maximum sealer penetration depths in the US-iRoot SP group at all evaluated levels (P<0.05). Stereomicroscopy showed the smallest gap between sealer and gutta-percha in the US-iRoot SP group. SEM confirmed improved adaptation of the sealer to the dentin wall and deeper penetration into dentinal tubules.
conclusionThe ultrasonic-assisted iRoot SP single-cone technique significantly enhances root canal obturation quality compared to both the conventional iRoot SP single-cone technique and the AH plus with WVC technique.
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