Effect of metal primer and thermocycling on shear bonding strength between the orthodontic bracket and gold alloy / 대한치과교정학회지
Korean Journal of Orthodontics
;
: 320-329, 2009.
Article
in Korean
| WPRIM
| ID: wpr-646740
ABSTRACT
OBJECTIVE:
The aim of this study was to evaluate the effect of metal primers and thermocycling on shear bond strength between the orthodontic bracket and gold alloy.METHODS:
For this study, 80 specimens made of dental gold alloy were divided into 8 groups based on the combination of metal primers (none, Alloy primer, Metaltite, V-primer) and thermocycling (with and without thermocycling). Shear bond strength testing was performed with a universal testing machine. Bond failure sites were classified by a modified ARI (Adhesive Remnant Index) score.RESULTS:
All metal primer treated groups showed a significantly higher shear bond strength than the only sandblasting treated group without thermocycling (p0.05). Bond failure sites of the metal primer treated group without thermocycling occurred at gold alloy/adhesive interface, whereas there were no differences on bonding failure sites in the groups with thermocycling.CONCLUSIONS:
These findings suggest that using metal primer on gold alloy enhances the initial bracket bond strength. But, this effect was not shown with thermocycling.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Thiones
/
Thiouracil
/
Orthodontic Brackets
/
Collodion
/
Alloys
/
Methacrylates
Language:
Korean
Journal:
Korean Journal of Orthodontics
Year:
2009
Type:
Article
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