Influence of eugenol-containing temporary cement on efficacy of dentin-bonding systems / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 230-232, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-263408
ABSTRACT
<p><b>OBJECTIVE</b>This study investigated the influence of eugenol-containing temporary cement on the efficacy of two relatively new dentin-bonding systems.</p><p><b>METHODS</b>Thirty-two freshly extracted bovine central incisors were randomly divided into four groups. Dentin was exposed and polished with 320#, 400#, and 600# sand papers. After embedded, Group 3 and 4 specimens were covered with ZOE. Specimens in Group 1 and 2 were served as control. All specimens were stored for 1 week in distilled water at 37 degrees C. Then, the ZOE was mechanically removed. The dentin surfaces of Group 1 and 3 were treated with Prime & Bond NT bonding system and the dentin surfaces of Group 2 and 4 were treated with GLUMA adhesive system according to manufacturer's instructions. Thereafter composite resin columns (6 mm diameter, 2 mm high) were applied. After specimens stored in distilled water at 37 degrees C for 24 hours, the shear bond testing was carried out using a SHIMADZU universal testing machine with a cross-head speed of 0.5 mm/minute. The mode of failure was examined using SEM. The data were analyzed using ANOVA test at a significance level of 0.05.</p><p><b>RESULTS</b>The medians of shear bond strength for each group were as follows Group 1 (Prime & Bond NT) 9.57 MPa, Group 3 (Prime & Bond NT + ZOE) 10.72 MPa, Group 2 (GLUMA) 16.89 MPa, Group 4 (GLUMA + ZOE) 16.78 MPa. Group 1 and 3 had significantly lower bonding strength than did Groups 2 and 4. But no significant difference was found between the control groups and the groups treated with ZOE temporary cement.</p><p><b>CONCLUSION</b>Pretreatment of the dentin with ZOE temporary cement has no adverse influence on the efficacy of two relatively new dentin-bonding systems.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Zinc Oxide-Eugenol Cement
/
Random Allocation
/
Dental Bonding
/
Dentin-Bonding Agents
/
Shear Strength
/
Incisor
Limits:
Animals
Language:
Chinese
Journal:
Chinese Journal of Stomatology
Year:
2004
Type:
Article
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