ArticleBMC oral health2025
Effect of gutta-percha cone-mediated ultrasonic activation on the push-out bond strength and dentinal tubule penetration of epoxy resin- and silicate-based root canal sealers: an in vitro study.
Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
backgroundUltrasonic activation may alter the bond strength and intratubular penetration ability of root canal sealers, which are important criteria for the long-term success of root canal treatment. The aim of this study was to compare the effect of mediated ultrasonic activation in the push-out bond strength and intratubular penetration values of epoxy resin- and silicate-based root canal sealers.
methodsOne hundred and sixty human mandibular premolar teeth were used. The teeth were divided into two groups for bond strength and tubular penetration tests and further divided into four subgroups for obturation and ultrasonic activation (n = 20). Chemo-mechanical preparation of the root canals was performed with a Mtwo rotary instrument system accompanied by NaOCl irrigation up to #40/0.04 apical size. The root canals were filled with NeoMTA Plus or AH Plus sealers using the single cone technique. Gutta-percha-mediated ultrasonic activation was applied during obturation in one group of each sealer. Three horizontal sections were taken from the apical, middle and coronal regions of the roots. The sections were subjected to push-out bond strength tests and intratubular penetration analysis with a confocal laser scanning microscope. Failure modes were recorded after the bond strength test. Statistical differences between sealers were compared with the Mann-Whitney U test, and regional pairwise comparisons were made with the Friedman test. Bonferroni corrections were applied when necessary.
resultsNo significant difference was observed between NeoMTA Plus and AH Plus in terms of push-out bond strength, regardless of ultrasonic activation. Ultrasonically activated AH Plus showed a decreased maximum penetration depth. Ultrasonic activation did not change the distribution of failure modes in the bond strength test.
conclusionUltrasonic activation via a gutta-percha cone resulted in a significant reduction in bond strength of AH Plus in the apical third. No significant effect was observed for NeoMTA Plus. A similar trend was noted for intratubular penetration; however, the differences were not statistically significant in all regions.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.