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자료유형
학술저널
저자정보
최에스더 (혜전대학) 유상희 (원광대학교) 오승한 (원광대학교) 배지명 (원광대학교)
저널정보
대한치과재료학회 대한치과재료학회지 치과기재학회지 제37권 제3호
발행연도
2010.9
수록면
205 - 210 (6page)

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The aim of this study was to evaluate the effect of denture cleaners on the flexural properties of denture base resins according to the type and immersion times of denture cleaners. The heat-polymerized resin(Vertex RS, Dentimax, Netherlands) was used as the matrix, and 4 kinds of denture cleaner (Denfix-A, polident, cleadent, and Bony Plus) were tested in this research. The test specimens(n=5) of each group were immersed in 4 kinds of denture cleaners. After 1week, 2, 3, and 4weeks of immersion periods, the test specimens were evaluated by using mechanical strength test. The solution of denture cleaner were exchanged every 24 hours. The flexural strength and modulus were measured by an universal testing machine(Z02 0, Zwick, Germany) at a crosshead speed of 5 mm/min in a three-point bending mode. The data was analyzed by one-way ANOVA and the Duncan’s multiple range test(α=0.05).
The results of dental cleaner comparison test indicated that there was no significant difference between all test groups and control group regardless of immersion periods(p>0.05). However, the flexural modulus of Polident and Bony Plus groups were significantly lower than that of the control group(p<0.05) on the condition of 2 weeks of immersion. From the results of immersion period comparison test, flexural strength of all experimental group immersed for 1 week were significantly higher than that of the group immersed for 4 weeks(p<0.05). However, the flexural modulus of all experimental groups did not show any significant difference compared to that of control group regardless of immersion periods(p>0.05).

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UCI(KEPA) : I410-ECN-0101-2015-510-001111760