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Bond strength of endodontic sealers after intracanal surface pretreatment with CO2 laser
Rached Junior, Fuad Jacob Abi; Souza-Gabriel, Aline Evangelista; Sousa-Neto, Manoel Damião; Silva-Sousa, Yara Teresinha Correa.
  • Rached Junior, Fuad Jacob Abi; University of Ribeirão Preto. School of Dentistry. Ribeirão Preto. BR
  • Souza-Gabriel, Aline Evangelista; University of Ribeirão Preto. School of Dentistry. Ribeirão Preto. BR
  • Sousa-Neto, Manoel Damião; University of Ribeirão Preto. School of Dentistry. Ribeirão Preto. BR
  • Silva-Sousa, Yara Teresinha Correa; University of Ribeirão Preto. School of Dentistry. Ribeirão Preto. BR
RSBO (Impr.) ; 9(3): 298-302, Jul.-Sep. 2012. tab
Article in Spanish | LILACS | ID: lil-748128
ABSTRACT

Introduction:

The aim of this study was to evaluate in vitro the bonding of AH Plus and Endofill sealers to intraradicular canal walls after different dentin surface treatments. Material and

methods:

Sixty canines were sectioned obtaining dentin discs with 4-mm thickness and were embedded in acrylic resin. The canals were prepared with diamond burs. The specimens were divided into two groups (n = 30) GI - AH Plus and GII - Endofill and were subdivided into three groups based on the dentin surface treatment (n = 10) A - distilled and deionized water (control), B - 17% EDTA, C - CO2 laser with 3W in continuous mode for 10s. The specimens were submitted to push out test in a universal testing machine.

Results:

Tukey test revealed that the IB (AH Plus/17% EDTA) (17.59 ± 6.04) and IC (AH Plus/CO2 laser) (21.69 ± 4.93) subgroups had the highest values, which were statistically similar between each other (p > 0.05) and different from the other subgroups (p < 0.05). IIC subgroup (Endofill/CO2 laser) (7.25 ± 1.59) had intermediate values, which were statistically similar to (p > 0.05) IA subgroup (AH Plus/water) (10.99 ± 2.63), IIA subgroup (Endofill/water) (3.16 ± 0.83) and IIB subgroup (Endofill/ 17% EDTA) (5.31 ± 3.61), which had the smallest values (p < 0.05).

Conclusion:

The treatment of superficial intracanal dentin with CO2 laser and EDTA favored the adhesion of AH Plus and Endofill sealers.

Full text: Available Index: LILACS (Americas) Language: Spanish Journal: RSBO (Impr.) Journal subject: Dentistry Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of Ribeirão Preto/BR

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Full text: Available Index: LILACS (Americas) Language: Spanish Journal: RSBO (Impr.) Journal subject: Dentistry Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of Ribeirão Preto/BR