Effect of obturation technique on penetration of calcium silicate–based sealer into dentinal tubules after endodontic retreatment of mandibular premolars

Martins, Milena Perraro; Andrade, Flaviana Bombarda de; Bramante, Clóvis Monteiro; Vivan, Rodrigo Ricci; Limoeiro, Ana Grasiela da Silva; Nascimento, Wayne Martins; Duarte, Marco Antônio Húngaro

doi:10.1007/s00784-022-04675-8

Cited by 3 publications

(2 citation statements)

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“…Thus, fluorescent-tagged regions would not necessarily be filled with bioceramic sealer but with water inside the dentinal tubules, which is responsible for carrying the fluorophore, impairing the validity of earlier investigations [ 32 ]. By contrast, Fluo-3, a nonfluorescent compound, becomes substantially more fluorescent once it binds to the calcium in calcium silicate–based sealers, which makes it easier to assess the sealer’s penetration with CLSM [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

“…A higher percentage of sealer penetration denotes a higher percentage of sealed tubules, which could lead to greater entrapment of microorganisms, increasing the chances of successful treatment. Additionally, a deeper level of penetration may cause the sealer to encounter more microorganisms in each tubule, thus extending the antiseptic effect of the sealer especially in the apical third where the ineffective delivery of irrigant to the apical third of the canal occur [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

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Effect of continuous chelation on the dentinal tubule penetration of a calcium silicate–based root canal sealer: a confocal laser microscopy study

Hassan

Roshdy

2023

BMC Oral Health

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Background This study aimed to evaluate the effect of various irrigation protocols on the penetration depth of a calcium silicate–based sealer into dentinal tubules using confocal laser scanning microscopy (CLSM). Methods Twenty single-rooted mandibular premolars were endodontically prepared and divided into the following two groups according to the irrigation protocol used (n = 10): Group I: NaOCl + EDTA and Group II: continuous chelation (NaOCl/Dual Rinse). Obturation was performed with the warm vertical compaction technique using TotalFill HiFlow bioceramic sealer mixed with a fluorophore dye. Samples were observed using CLSM at 10× to measure the percentage of sealer penetration and its maximum depth into the dentinal tubules. Data were analysed using one-way ANOVA followed by Tukey’s post-hoc test. The significance level was set at p < 0.05 within all tests. Results Comparing the overall results of all sections tested, no statistically significant differences existed between the groups regarding the percentage of sealer penetration (p = 0.612) and maximum depth of penetration (p > 0.05). Conclusions With both types of irrigation used, dentinal tubule penetration was higher in the coronal section than in the apical section. Continuous chelation using NaOCl/Dual Rinse HEDP performed better in the coronal segments, while irrigation using NaOCl + EDTA promoted a higher percentage of sealer penetration in the apical segment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%