Journal ArticleDOI
Persistence of Epoxy‐Based Sealer Residues in Dentin Treated With Different Chemical Removal Protocols
Milton Carlos Kuga,Gisele Faria,Marcos A. Rossi,Jardel Camilo do Carmo Monteiro,Idomeo Bonetti-Filho,Fábio Luiz Camargo Vilella Berbert,Kátia Cristina Keine,Marcus Vinícius Reis Só +7 more
TLDR
It was concluded that amyl acetate and acetone may be good options for cleaning the pulp chamber after obturation with AH Plus, and performed better than 95% ethanol and isopropyl alcohol, but not better than acetone.Abstract:
The presence of residual endodontic sealer in the pulp chamber may cause discoloration of the dental crown and interfere with the adhesion of restorative materials. The aim of this study was to compare the efficacy of different solvents in removing residues of an epoxy resin-based sealer (AH Plus) from the dentin walls of the pulp chamber, by scanning electron microscopy (SEM). Forty-four bovine incisor dental crown fragments were treated with 17% EDTA and 2.5% NaOCl. Specimens received a coating of AH Plus and were left undisturbed for 5 min. Then, specimens were divided in four groups (n = 10) and cleaned with one of the following solutions: isopropyl alcohol, 95% ethanol, acetone solution, or amyl acetate solution. Negative controls (n = 2) did not receive AH Plus, while in positive controls (n = 2) the sealer was not removed. AH Plus removal was evaluated by SEM, and a score system was applied. Data were analyzed by Kruskal-Wallis and Dunn tests. None of the solutions tested was able to completely remove AH Plus from the dentin of the pulp chamber. Amyl acetate performed better than 95% ethanol and isopropyl alcohol (p 0.05) in removing the sealer from dentin. No significant differences were observed between acetone, 95% ethanol, and isopropyl alcohol (p > 0.05). It was concluded that amyl acetate and acetone may be good options for cleaning the pulp chamber after obturation with AH Plus.read more
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Journal ArticleDOI
The bond strength of adhesive resins to AH plus contaminated dentin cleaned by various gutta-percha solvents.
TL;DR: Dry cotton, ethanol, and chloroform were the most suitable techniques when used with CSE together, whereas ethanol was best with TNB, and eucalyptol showed the lowest bond strength to APCD and statistically significant differences in comparison with other groups.
Journal ArticleDOI
Effect of the calcium silicate-based sealer removal protocols and time-point of acid etching on the dentin adhesive interface
Jéssika Mayhara Pereira Morais,Keli Regina Victorino,Wilfredo Gustavo Escalante-Otárola,Keren Cristina Fagundes Jordão-Basso,Regina Guenka Palma-Dibb,Milton Carlos Kuga +5 more
TL;DR: Acid etching immediately after calcium silicate‐based endodontic sealer removal using xylol presented the highest residues persistence and negatively affected the adhesive interface between dentin and etch‐and‐rinse adhesive system.
Journal ArticleDOI
Efficacy of an Organic Solvent and Ultrasound for Filling Material Removal
Gabriela Guardiola Müller,Ânielle Pinheiro Schönhofen,Patrícia Maria Poli Kopper Móra,Fabiana Soares Grecca,Marcus Vinícius Reis Só,Augusto Bodanezi +5 more
TL;DR: Investigating whether a final rinse with Endosolv R® solvent and ultrasound resulted in cleaner root canal walls during endodontic retreatment found no significant differences between the groups or among the root canal thirds within each group (p>0.05).
Journal ArticleDOI
Effect of the time-point of acid etching on the persistence of sealer residues after using different dental cleaning protocols
Keren Cristina Fagundes Jordão-Basso,Milton Carlos Kuga,Matheus Coelho Bandeca,Marco Antonio Hungaro Duarte,Flávia Angélica Guiotti +4 more
TL;DR: The least epoxy resin-based sealer residues was obtained when acid etching, using 37% phosphoric acid, was performed after 7 days after cleaning the dentin with xylol.
Journal ArticleDOI
Effect of cleaning protocols on bond strength of etch-and-rinse adhesive system to dentin.
Marina Oliveira Gonçalves Galoza,Keren Cristina Fagundes Jordão-Basso,Wilfredo Gustavo Escalante-Otárola,Keli Regina Victorino,Andrea Abi Rached Dantas,Milton Carlos Kuga +5 more
TL;DR: Evaluated cleaning protocol of dentin impregnated with epoxy resin-based sealer residues' removal protocols' action showed higher residues' persistence and lower incidence of open dentinal tubules than G1 and G3 but 7 days later, the protocols did not affect the bond strength of adhesive system to sealer-impregnated dentin.
References
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Journal ArticleDOI
Root canal cleanliness after preparation with different endodontic handpieces and hand instruments: A comparative SEM investigation
TL;DR: The ultrasonic unit performed best followed by the Canal Leader 2000 and hand instrumentation, whereas the use of the Giromatic, the Endolift, the Canal Finder System, and the Intra-Endo-3-LDSY-handpiece resulted in insufficiently cleaned root canal walls.
Journal ArticleDOI
Nonvital Tooth Bleaching: A Review of the Literature and Clinical Procedures
TL;DR: There is a deficiency of evidence-based science in the literature that addresses the prognosis of bleached nonvital teeth, so it is important to always be aware of the possible complications and risks that are associated with the different bleaching techniques.
Journal ArticleDOI
Comparison of the Intraosseous Biocompatibility of AH Plus, EndoREZ, and Epiphany Root Canal Sealers
Cássio José Alves de Sousa,Cristiana R.M. Montes,Elizeu A. Pascon,Adriano Mota Loyola,Marco Aurélio Versiani +4 more
TL;DR: It was concluded that Epiphany root canal sealer was the only material that presented intraosseous biocompatibility within the two analyzed periods.