Experimental study on the sealing of dentin tubules by penetrating resin or fluid resin / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 336-340, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-490278
ABSTRACT
Objective:
To study the sealing effect of penetrating resin and fluid resin on the exposed dentin with self-etching and to-tal-etching methods,respectively.Methods:
60 fresh extracted teeth were randomly divided into 4 groups(n =15).The enamel layer at the tooth neck was cut off,the dentin layer was exposed and adhered with penetrating resin Icon-Infiltration following Icon-Etch etching(group A),Icon-Infiltration following SE-Bond etching(group B),FiltekTMZ350X following SE-Bond etching(group C)and Prime &Bond NT combined with FiltekTMZ350XT following Gluma acid etching(group D),respectively.The morphological change of the dentin-resin interface was examined by the scanning electron microscope.The thickness of adhensive layer hybrid layer and the length of resin tag were measured.Data were statistically analysed.Results:
Tight adhesion layer was observe in all groups.The hy-brid layer of the adhesive interface of group D was thicker than that of other groups(P <0.05);the resin tags in the dentin tubules of group A were longer than those of other groups(P <0.05);the bonding agent layer of group C was the thickest(P <0.05).Conclu-sionThe penetrating resin can form more effective protection layer on the exposed dentin surface and longer resin tags pernertrating in-to the dentin tubules than self-etch/total-etch bond system with fluid resin.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2016
Type:
Article
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