Please use this identifier to cite or link to this item: https://doi.org/10.2341/11-419-L
Title: Effects of food-simulating liquids on surface properties of giomer restoratives
Authors: Kooi, T.J.M.
Tan, Q.Z.
Yap, A.U.J. 
Guo, W.
Tay, K.J.
Soh, M.S.
Issue Date: 2012
Source: Kooi, T.J.M., Tan, Q.Z., Yap, A.U.J., Guo, W., Tay, K.J., Soh, M.S. (2012). Effects of food-simulating liquids on surface properties of giomer restoratives. Operative Dentistry 37 (6) : 665-671. ScholarBank@NUS Repository. https://doi.org/10.2341/11-419-L
Abstract: This study examined the effects of food-simulating liquid (FSL) on the hardness and roughness of giomer restoratives based on prereacted glass ionomer (PRG) technology. The materials investigated included a regular (Beautifil II [BT]) and a recently introduced injectable (Beautifil Flow Plus F00 [BF]) hybrid PRG composite. A direct hybrid composite (Filtek Z250 [ZT]) and an indirect hybrid composite (Ceramage [CM]) were used for comparison. The materials were placed into customized square molds (5 mm × 5 mm × 2.5 mm), covered with Mylar strips, and cured according to manufacturers' instructions. The materials were then conditioned in air (control), distilled water, 50% ethanol solution, and 0.02 N citric acid at 37°C for seven days. Specimens (n=6) were then subjected to hardness testing (Knoop) and surface profilometry. Data were analyzed using one-way analysis of variance and post hoc Scheffe test (p<0.05). Mean Knoop hardness values for the control group (air) ranged from 53.4 ± 3.4 (BF) to 89.5 ± 5.2 (ZT), while mean surface roughness values values ranged from 0.014 ± 0.002 (ZT) to 0.032 ± 0.001 (BT). All materials were significantly softened by FSL. The degree of softening by the different FSLs was material dependent. The hardness of giomers was most affected by citric acid and ethanol. The smoothest surface was generally observed with the control group. Giomer restoratives were significantly roughened by citric acid.
Source Title: Operative Dentistry
URI: http://scholarbank.nus.edu.sg/handle/10635/46867
ISSN: 03617734
DOI: 10.2341/11-419-L
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

8
checked on Dec 11, 2017

WEB OF SCIENCETM
Citations

8
checked on Dec 11, 2017

Page view(s)

69
checked on Dec 9, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.