ArticleLasers in medical science2026
Influence of different final irrigation protocols for removal of photosensitizer activated by ultrasonic device on the bond strength of gutta-percha/bioceramic sealer and fiberglass posts/self-adhesive cement.
Article in Lasers in medical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Influence of Obturation Technique on the Retreatability and Push-Out Bond Strength of Bioceramic Sealers: An In Vitro SEM Study.Materials (Basel, Switzerland) · 2026Article
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10 authors.
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Abstract
The aim of present study was to evaluate the influence of final irrigation protocols for removal of photosensitizer activated by ultrasonic device(US) on the bond strength(BS) of gutta-percha/bioceramic sealer and fiberglass posts/self-adhesive cement to root dentin. One hundred single-rooted teeth were used, being 50 roots used to assess the BS of filling material and 50 to assess the BS of restorative material. After sample preparation, photodynamic therapy with US was performed, using 0.01% methylene blue as photosensitizer and diode laser as light source. The 50 roots of each evaluation were randomly divided into five groups (n=10), according to irrigation protocol for photosensitizer removal: G1 – distilled water + US; G2 – 17% EDTA; G3–17% Glycolic acid(GA); G4 – 17% EDTA + US; G5 – 17% GA+US. Then, 50 roots were filled with gutta-percha/Bio-C bioceramic sealer and 50 roots were filled with fiber glass posts/Rely-X U200 self-adhesive cement. In both, the roots were sectioned to obtain 1 mm thick dentin/material discs, and the push-out test was performed. Failure patterns were observed under optical microscope. Specific statistical analysis was performed (α=5%). In both evaluations, BS was significantly higher in groups 4(17% EDTA + US) and 5(17% GA + US) when compared to all other groups(p < 0.05). Regarding the failure patterns, no statistically significant difference was found between groups (p > 0.05), with a predominance of cohesive failure in all groups. The association of US with EDTA and GA for photosensitizer removal improved the BS of filling/restorative material to root dentin.
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