The effect of casein phosphopeptide amorphous calcium phosphate on the in vitro shear bond strength of orthodontic brackets / 대한치과교정학회지
The Korean Journal of Orthodontics
;
: 23-28, 2013.
Article
in English
| WPRIM
| ID: wpr-213101
ABSTRACT
OBJECTIVE:
The purpose of this study was to evaluate the effect of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) on the shear bond strength (SBS) of brackets bonded to non-demineralized teeth with either phosphoric acid etching or self-etching primer.METHODS:
Sixty human premolars were randomly assigned to 1 of 4 treatment groups (n = 15 each) phosphoric acid etching (group 1); self-etching primer (group 2); CPP-ACP for 2 weeks + phosphoric acid etching (group 3), and CPP-ACP for 2 weeks + self-etching primer (group 4). After bonding of the maxillary premolar metal brackets, specimens were subjected to shear forces in a testing machine. Scanning electron microscopy was used to observe etching patterns on the enamel surfaces of all teeth. A 2-way analysis of variance was used to test for effects of CPP-ACP and etching system on SBS.RESULTS:
Significantly higher mean SBSs were observed in groups subjected to phosphoric acid etching (i.e., groups 1 and 3; p 0.05). We observed a uniform and clear etched pattern on the enamel surface of the phosphoric acid etching groups.CONCLUSIONS:
CPP-ACP does not significantly affect the SBS of orthodontic brackets bonded to non-demineralized teeth, regardless of which adhesive method is used to bond the brackets.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phosphoric Acids
/
Tooth
/
Bicuspid
/
Calcium Phosphates
/
Microscopy, Electron, Scanning
/
Caseins
/
Adhesives
/
Calcium
/
Orthodontic Brackets
/
Dental Enamel
Limits:
Humans
Language:
English
Journal:
The Korean Journal of Orthodontics
Year:
2013
Type:
Article
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