Effect of different dentin cleaning agents on the bond strength of self-adhesive resin cement to dentin
10.7518/hxkq.2015.03.019
- VernacularTitle:不同牙本质清洁剂对牙本质与自粘接树脂水门汀粘接强度的影响
- Author:
Jilan JIAO
1
;
Liwei ZENG
;
Hao ZHOU
;
Lu DENG
;
Niangou ZHOU
;
Ping CHEN
;
Hui JIANG
Author Information
1. 南昌大学附属口腔医院口腔修复科
- Keywords:
ethylenediamine tetraacetic acid;
NaClO;
self-adhesive resin cement;
shear bond strength
- From:
West China Journal of Stomatology
2015;(3):306-310
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveThis?study?aims?to?evaluate?the?bond?strength?of?a?self-adhesive?resin?cement?to?dentin?by?ethylene-diamine?tetraacetic?acid?(EDTA)?and?NaClO.?Methods???Twenty-seven?freshly?extracted?non-carious?human?premolars?were?prepared?to?expose?the?buccal?dentin?and?randomly?divided?into?three?groups:?control?group?(A?group),?EDTA?group?(B?group)?and?NaClO?group?(C?group).?All?teeth?were?bonded?to?dentin?using?a?self-adhesive?resin?cement?after?the?teeth?in?the?A?group?were?processed?with?distilled?water.?The?B?and?C?group?were?processed?with?3%EDTA?and?1%NaClO,?respectively.?After?24?hours?at?37?℃?water,?the?shear?bond?strengths?of?the?twenty-four?specimens?were?measured.?All?statistical?analysis?was?performed?using?SPSS?17.0?software?package.?Each?fractured?specimen?was?examined?under?dental?microscope.?Three?new?specimens?were?cut,?and?the?morphologies?of?the?cement-dentin?interface?were?observed?under?scanning?electron?microscope?(SEM).?Results???The?shear?bond?strength?in?the?A?group,?B?group?and?C?group?was?(8.55±0.63),??(8.47±0.56)?and?(12.97± 0.59)?MPa,?respectively.?The?difference?between?A?group?and?B?group?was?no?statistically?significant?(P>0.05),?whereas?the?difference?between?C?group?and?B?group?(or?A?group)?was?statistically?significant?(P<0.05).?SEM?observation?of?the?cement-dentin?interface?in?the?C?group?showed?good?adaptation,?but?resin?tags?were?not?observed.?The?other?two?groups?showed?poor?bonding?interface.?Most?of?the?fractured?adhesive?dentin?surfaces?exhibited?cohesive?failure?in?the?A?group?and?B?group.?All?the?fractured?adhesive?dentin?surfaces?exhibited?cohesive?failure?in?the?C?group.?Conclusion???1%?NaClO?can?increase?the?bond?strength?of?self-adhesive?resin?cement?to?dentin,?but?3%EDTA?has?no?effect.
