Color change in acrylic denture base resin reinforced with wire mesh and glass cloth.
In this study, the L*a*b* color system as a color system and light transmittance of the denture base resin reinforced with wire mesh and glass cloth were measured, and the color difference (deltaE*ab) was calculated using L*, a* and b* values which were measured both on a white calibration plate and on a null background. The thicknesses of test specimens, which were reinforced with wire mesh and glass cloth 0.5 and 1.0 mm below the surface, were 3 and 5 mm. L*, a* and b* values of wire mesh reinforcing specimens decreased in comparison with the non-reinforcing specimens (p<0.05). L* values of glass cloth-reinforcing specimens increased compared with the non-reinforcing specimens (p<0.05). The glass cloth is an effective reinforcing material and an aesthetically important property of denture base resin, since wire mesh makes the resin appear darker with the background condition greatly altering the color, while glass cloth makes the resin lighter.
Department of Biomaterials Science, Field of Oral and Maxillofacial Rehabilitation, Course for Advanced Therapeutics, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
Takahito
T
Kanie
Hiroyuki
H
Arikawa
Koichi
K
Fujii
Seiji
S
Ban
D000180:Acrylic Resins; D000704:Analysis of Variance; D003116:Color; D003124:Colorimetry; D003819:Denture Bases; D003779:Denture Design; D005898:Glass; D008027:Light; D008422:Materials Testing; D017797:Prosthesis Coloring; D013193:Stainless Steel
D000180:Acrylic Resins; C009753:fiberglass; D013193:Stainless Steel