|
KMID : 0361920070370040283
|
|
Korean Journal of Orthodontics
2007 Volume.37 No. 4 p.283 ~ p.292
|
|
|
Shear bond strength of brackets bonded with different self etching primers
|
|
Yang Jin-Young
Kim Min-Ji
Lim Yong-Kyu
Lee Dong-Yul
|
|
|
Abstract
|
|
|
The purpose of this study was to evaluate the clinical usefulness of 4 self etching primers by measuring the shear bond strength of orthodontic brackets and examining the failure pattern of bracket-tooth interfaces.
Methods:Seventy-five, defect-free, premolars were randomly assigned into five groups: control group (37% phosphoric acid + Transbond XT primer) and self etching primer treated groups (Transbond Plus self etching primer, Unifil bond, Clearfil SE bond, and Adhese). The shear bond strength was measured with a universal testing machine and the amount of residual adhesive remaining on the brackets after debonding was assessed by the adhesive remnant index (ARI).
Results: The results showed that the groups conditioned with self etching primer had significantly lower shear bond strength than the control group (p < 0.05), although clinically acceptable. However, there were no significant differences in shear bond strength among the self etching primer groups (p > 0.05). Evaluation of the ARI scores indicated there was less resin remnant on the teeth in the groups conditioned with self etching primers, although not statistically significant.
Conclusion: The results of this study suggest that all four of the self etching primers have shown acceptable bond strength for clinical use.
|
|
|
KEYWORD
|
|
|
Self etching primer, Shear bond strength, Adhesive remnant index
|
|
|
FullTexts / Linksout information
|
|
 
|
|
|
Listed journal information
|
|
  
|