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Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment

Overview of attention for article published in Brazilian Oral Research, January 2017
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Title
Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment
Published in
Brazilian Oral Research, January 2017
DOI 10.1590/1807-3107bor-2017.vol31.0011
Pubmed ID
Authors

PALHAIS, Marcelo, SOUSA-NETO, Manoel Damião, RACHED-JUNIOR, Fuad Jacob Abi, AMARAL, Mariana Carvalho de Andrade, ALFREDO, Edson, MIRANDA, Carlos Eduardo Saraiva, SILVA-SOUSA, Yara Teresinha Corrêa, PALHAIS, Marcelo, SOUSA-NETO, Manoel Damião, RACHED-JUNIOR, Fuad Jacob Abi, AMARAL, Mariana Carvalho de Andrade, ALFREDO, Edson, MIRANDA, Carlos Eduardo Saraiva, SILVA-SOUSA, Yara Teresinha Corrêa

Abstract

This study evaluated the removal of filling material with ProTaper Universal Rotary Retreatment system (PTR) combined with solvents and the influence of solvents on the bond strength (PBS) of sealer to intraradicular dentin after canal reobturation. Roots were endodontically treated and distributed to five groups (n = 12). The control group was not retreated. In the four experimental groups, canals were retreated with PTR alone or in combination with xylol, orange oil, and eucalyptol. After filling material removal, two specimens of each group were analysed by SEM and µCT to verify the presence of filling remnants on root canal walls. The other roots were reobturated and sectioned in 1-mm-thick dentin slices that were subjected to the push-out test. Data were analysed by two-way ANOVA and Tukey's test (α = 0.05). SEM and µCT analysis revealed that all retreatment techniques left filling remnants on canal walls. The control group (3.47 ± 1.21) presented significantly higher (p < 0.05) PBS than the experimental groups. The groups retreated with PTR alone (2.59 ± 0.99) or combined with xylol (2.54 ± 0.77) and orange oil (2.32 ± 0.93) presented similar bond strength (p > 0.05), and differed significantly from the group with eucalyptol (1.89 ± 0.63). The solvents reduced the PBS of the sealer to dentin and no retreatment technique promoted complete removal of filling material.

Mendeley readers

The data shown below were compiled from readership statistics for 37 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 37 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 5 14%
Researcher 3 8%
Professor 3 8%
Student > Doctoral Student 3 8%
Other 2 5%
Other 6 16%
Unknown 15 41%
Readers by discipline Count As %
Medicine and Dentistry 16 43%
Pharmacology, Toxicology and Pharmaceutical Science 2 5%
Nursing and Health Professions 1 3%
Social Sciences 1 3%
Agricultural and Biological Sciences 1 3%
Other 0 0%
Unknown 16 43%