티타니아 나노섬유 첨가에 의한 치과용 글라스아이오노머 시멘트의 강화
Strengthening of Dental Glass-Ionomer Cement by Addition of Titania Nanofiber
김동애, 김규리, 송찬근, 윤종원, 이해형,
소속 상세정보
김동애 ( Kim Dong-Ae ) - 단국대학교 대학원 나노바이오의과학과
김규리 ( Kim Gyu-Ri ) - 단국대학교 대학원 나노바이오의과학과
송찬근 ( Song Chan-Keun ) - 단국대학교 공학대학 신소재공학과
윤종원 ( Yoon Jong-Won ) - 단국대학교 공학대학 신소재공학과
이해형 ( Lee Hae-Hyoung ) - 단국대학교 치과대학 생체재료학교실
KMID : 0362220120390030177
Abstract
The aim of this study was to investigate the mechanical properties of dental glass-ionomer cement containing titania nanofiber (TNF). The TNF was fabricated by electrospinning using chemicals and calcinated at 800℃, and mixed with a commercial glass ionomer powder by ball milling in 10 wt%. Specimens for compressive strength (φ4 mm x 6 mm) and diametral tensile strength (φ6 mm x 4 mm) were prepared by mixing with the cement liquid and kept in an water of (37±1)℃. Mechanical strength tests were conducted at 1 h, 24 h, and 7 days at cross-head speed of 1 mm/min. Data were statistically analyzed by one-way ANOVA and Tukey HSD post-hoc test. Mean strength values of GIC containing TNF was
significantly higher than unmodified or ball milled groups without TNF (p<0.05). Scanning electron micrographs showed that TNF was embedded and bonded with the cement matrix. Results indicated that the TNF was considered as potential reinforcing material for dental glass-ionomer cement.
키워드
Titania nanofiber; Glass-ionomer cement; Reinforcing agent; Compressive strength; Diametral tensile strength
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