ArticleCureus2026
Comparative Evaluation of Depth of Penetration of AH Plus® Sealer With Different Ratios of Pachymic Acid Using a Confocal Scanning Electron Microscope: An In Vitro Study.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
introductionModification with pachymic acid (PA) has been seen to reduce the cytotoxicity of freshly mixed AH Plus MATERIALS AND
methodsA total of 30 single-rooted mandibular premolar teeth with a single canal were collected and stored in distilled water. All 30 teeth were prepared to a master apical size of 30/0.09 using ProTaper rotary nickel-titanium files (Dentsply Sirona Inc.). The teeth were randomly divided into three groups based on the sealer used for obturation: (i) Group A: AH Plus sealer, (ii) Group B: AH Plus sealer with a 10:1 ratio of 0.75% PA, and (iii) Group C: AH Plus sealer with a 5:1 ratio of 0.75% PA. The obturated teeth were sectioned horizontally at three different levels from the root apex and were studied under a confocal electron microscope. Data were statistically analyzed using ANOVA.
resultsSealer penetration was highest in Group A, measuring 1640.80 ± 4.5 µm, 985.39 ± 3.2 µm, and 387.91 ± 1.9 µm at the coronal, middle, and apical thirds, respectively (p = 0.03). Group B showed penetration depths of 910.04 ± 1.4 µm, 1007.62 ± 1.9 µm, and 635.95 ± 2.8 µm, while Group C demonstrated 823.54 ± 3.7 µm, 334.03 ± 4.6 µm, and 423.92 ± 2.7 µm at the respective root levels. Overall, Group A (unmodified AH Plus) exhibited the greatest sealer penetration.
conclusionIn all regions, AH plus sealer with the addition of 10:1 and 5:1 of 0.75% PA showed lesser penetration than that by the AH Plus sealer alone.
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