Effects of pins and bonding agents on the tensile strengths of Ni/Cr alloy bonded to enamel
- VernacularTitle:针道和粘接剂对镍铬合金与牙釉质粘接强度的影响
- Author:
Yan WANG
;
Yadong YANG
- Publication Type:Journal Article
- Keywords:
Dental cements;
Chromium alloys;
Dental bonding;
Pins;
Tensile strength
- From:
Journal of Peking University(Health Sciences)
2004;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To evaluate the effects of pin retention form and different bonding agents on the tensile bond and re-bond strength of Ni/Cr alloy to the enamel. Methods: Sixty bovine permanent incisors were randomly divided into 6 equal groups by the variables of the numbers (0, 1 or 2) of pins to be prepared and bonding agents (Panavia F and Super-Bond C&B). The pin 1mm in diameter and 1mm in depth was prepared vertically to each enamel surface in the groups to be with pins. Cast Ni/Cr alloys cy-linders were made and bonded to respective enamels using two different agents. Tensile strengths were tested. After residual visible resin on the debonded surfaces being removed, specimens were re-bonded and tested in the same way as initial bonding. Results: The tensile strength of Super-Bond C&B groups (11.82 MPa) was significantly higher than those of Panavia F groups (9.28 MPa, P
