|
KMID : 0362220120390030177
|
|
Journal of The Korean Research Society for Dental Materials
2012 Volume.39 No. 3 p.177 ~ p.182
|
|
|
Strengthening of Dental Glass-Ionomer Cement by Addition of Titania Nanofiber
|
|
Kim Dong-Ae
Kim Gyu-Ri
Song Chan-Keun
Yoon Jong-Won
Lee Hae-Hyoung
|
|
|
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.
|
|
|
KEYWORD
|
|
|
Titania nanofiber, Glass-ionomer cement, Reinforcing agent, Compressive strength, Diametral tensile strength
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|