Hong Guan, Li YingAi, Maeda Takeshi, Mizumachi Wataru, Sadamori Shinsuke, Hamada Taizo, Murata Hiroshi
Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
Dent Mater J. 2008 Mar;27(2):153-8. doi: 10.4012/dmj.27.153.
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.
本研究的目的是比较三种储存方法对组织调理剂表面粗糙度的影响。本研究使用了四种商用组织调理剂（GC Soft Liner、Softone、Fictioner和Hydro-Cast）。每种材料的五个样本分别储存在蒸馏水、空气和假牙清洁剂（Polident）中。使用轮廓仪在浸泡0、1、3、7和14天后测量由组织调理剂制成的牙科石膏模型的平均表面粗糙度（R(a)）值。在三种储存方法之间发现标本的R(a)值存在显著差异。除了储存在空气中的材料外，每种储存方法的R(a)值均随浸泡时间的增加而显著增加。结果发现，储存在空气中的材料显示出最稳定且最低的R(a)值。所得结果表明组织调理剂在空气中储存时比在蒸馏水和假牙清洁剂中储存时表面粗糙度随时间变化更平滑且变化最小。
