Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)
- Volume 23 Issue 2
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- Pages.489-501
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- 1996
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- 1226-8496(pISSN)
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- 2288-3819(eISSN)
An Experimental Study on the Shear Bond Strength of Fluoride-Containing Sealant and Non-Fluoride Containing Sealant
불소함유여부에 따른 치면열구전색제의 전단결합강도에 관한 실험적 연구
- Her, Sun (Department of Pediatric Dentistry, College of Dentistry, Chonbuk National University) ;
- Kweon, Seon-Ja (Department of Pediatric Dentistry, College of Dentistry, Chonbuk National University) ;
- Kim, Jae-Gon (Department of Pediatric Dentistry, College of Dentistry, Chonbuk National University) ;
- Baik, Byeong-Ju (Department of Pediatric Dentistry, College of Dentistry, Chonbuk National University)
- 허선 (전북대학교 치과대학 소아치과학교실) ;
- 권선자 (전북대학교 치과대학 소아치과학교실) ;
- 김재곤 (전북대학교 치과대학 소아치과학교실) ;
- 백병주 (전북대학교 치과대학 소아치과학교실)
- Published : 1996.05.31
Abstract
This study was to evaluate shear bond strength of fluoride-releasing sealant and nonfluoride releasing sealant to enamel surface of bovine tooth. 80 extracted bovine teeth were randomly assigned to four groups, and four kinds of sealants including Teethmate-A(Kuraray Co.), Teethmate-F(Kuraray Co.), Helioseal(Vivadent Co.), Helioseal-F(Vivadent Co.) were bonded to exposed enamel surfaces using silicon plate. Shear bond strength was determined in an instron universal testing machine at a crosshead speed of 1mm/min. Then, the fracture surfaces of test specimens were investigated with scanning electron microscope. The obtained results were as follows; 1. The shear bond strength decreased in the following order : Teethmate-A(18.31MPa), Teethmate-F(11.90MPa), Helioseal (11.74 MPa), Helioseal-F(10.64MPa). 2. The shear bond strength of Teethmate-A showed significantly higher than that of Teethmate-F(P<0.05), but Helioseal and Helioseal-F didn't showed statistically different(P<0.05). 3. According to the SEM, Teethmate-A group showed cohesive failure, and Teethmate-A group & Helioseal group showed mixed pattern of cohesive and adhesive failure and Helioseal-F group showed adhesive failure.
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