Influence of storage methods on the surface roughness of tissue conditioners.
The purpose of this study was to compare the influence of three kinds of storage methods on surface roughness of tissue conditioners. Four commercial tissue conditioners (GC Soft Liner, Softone, Fictioner, and Hydro-Cast) were used in this study. Five samples of each material were stored in distilled water, air, and a denture cleanser (Polident). Mean surface roughness (R(a)) values of dental stone casts made from the tissue conditioners were measured after 0, 1, 3, 7, and 14 days of immersion using a profilometer. Significant differences in the R(a) values of the specimens were found among the three storage methods. The values of R(a) significantly increased with increase in immersion time for each storage method, except for the materials stored in air. It was found that the materials stored in air showed the most stable and lowest values of R(a). Results obtained suggested that a tissue conditioner exhibited smooth and minimal change in surface roughness with time when stored in air than in distilled water and denture cleanser.
Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan. hong@hiroshima-u.ac.jp
Guan
G
Hong
YingAi
Y
Li
Takeshi
T
Maeda
Wataru
W
Mizumachi
Shinsuke
S
Sadamori
Taizo
T
Hamada
Hiroshi
H
Murata
D000388:Air; D000704:Analysis of Variance; D003820:Denture Cleansers; D003822:Denture Liners; D016062:Porosity; D013499:Surface Properties; D014867:Water
D003820:Denture Cleansers; D014867:Water