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The effect of casein phosphopeptide amorphous calcium phosphate on the in vitro shear bond strength of orthodontic brackets

Authors
 Sun-Youn Park ; Jung-Yul Cha ; Chung-Ju Hwang ; Kyoung-Nam Kim 
Citation
 Korean Journal of Orthodontics (대한치과교정학회지), Vol.43(1) : 23~28, 2013 
Journal Title
 Korean Journal of Orthodontics  (대한치과교정학회지) 
ISSN
 2234-7518 
Issue Date
2013
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). On the other hand, SBSs did not appear to be influenced by CPP-ACP (i.e., groups 3 and 4; 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.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/86604
DOI
10.4041/kjod.2013.43.1.23
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Dental Engineering
1. 연구논문 > 2. College of Dentistry > Dept. of Orthodontics
Yonsei Authors
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