Effects of polishing on surface roughness and gloss of S-PRG filled flowable resin composite.
OBJECTIVE
To evaluate the effects of polishing on surface roughness (Ra, microm) and gloss of different shades of a surface pre-reacted glass-ionomer (S-PRG) filled flowable resin composite.


METHODS
Resin disks of 15 mm diameter and 2 mm thickness and final polish with 3000-grit SiC paper (#3000), super fine cut diamond point (FG) and Super-Snap mini-disk red (SNAP) were made with Beautifil Flow Plus (shades: A2, A20, Inc). The surface roughness and gloss were measured 1-week after curing. Data was analyzed with ANOVA and Fisher's PLSD with alpha=0.05.


RESULTS
The order of Ra differed among the composite shades. For all shades in all polishing groups, the Ra was over 0.5 microm. For all shades, the gloss of the #3000 group was significantly higher than that of the FG and SNAP groups with no significant difference between the FG and SNAP groups except for the A20 shade. For A20 shade, the gloss of the SNAP group was significantly higher than that of the FG group.
Department of Pediatric Dentistry, Unit of Translational Medicine, Course of Medical and Dental Science, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Nagasaki 852-8588, Japan. hosoya@nagasaki-u.ac.jp
Yumiko
Y
Hosoya
Takanobu
T
Shiraishi
Susumu
S
Ando
Masashi
M
Miyazaki
Franklin
F
Garcia-Godoy
D000180:Acrylic Resins; D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003116:Color; D003188:Composite Resins / Q000737:chemistry; D003775:Dental Polishing / Q000295:instrumentation*; D023381:Endpoint Determination; D053761:Nanocomposites / Q000737:chemistry; D055620:Optical Phenomena; D012822:Silicon Dioxide; D013499:Surface Properties
D000180:Acrylic Resins; C470433:Beautifil composite resin; D003188:Composite Resins; C015897:glass ionomer; D017438:Bisphenol A-Glycidyl Methacrylate; D012822:Silicon Dioxide