Experimental study on microleakage between a new nano-hydroxyapatite composite and tooth.
- Author:
Meng-meng ZHAO
1
;
Qingshan WANG
;
Shuang WANG
;
Rui LI
Author Information
- Publication Type:Journal Article
- MeSH: Composite Resins; Dental Leakage; Dental Restoration, Permanent; Durapatite; Glass Ionomer Cements; Humans; Resin Cements
- From: West China Journal of Stomatology 2013;31(3):300-309
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the marginal adaptation between the new nano-hydroxyapatite composite resin and tooth.
METHODSThirty extracted healthy premolars were randomly assigned to three groups according to the material employed: New nano-hydroxyapatite composite resin (Group A), Karisma composite resin (Group B), and glass ionomer cement (Group C). After the thermal cycling, the teeth were immersed in 2% methylene blue dye, and the depth of microleakage between the composite and tooth structure were observed.
RESULTSThe microleakage depth of group A, B and C were (1.20+/-0.81), (1.94+/-0.70), and (1.73+/-0.54) mm, respectively. No statistically significant differences were found among the three groups (P>0.05). There was no significant difference in the degree of microleakage (P>0.05).
CONCLUSIONAs a new dental restorative material, new nano-hydroxyapatite composite resin has good bonding performance to the tooth structure.
