Odor and deterioration characteristics of denture base resins.

有一些关于义齿基托树脂和其他牙科树脂材料劣化过程中变色和气味特征的报告，尽管牙科树脂如义齿基托树脂可能是口臭的主要原因。本研究的目的是调查丙烯酸和聚砜义齿基托树脂的气味特征和劣化。光活化修复复合树脂和用于修复树脂色调改性的涂料树脂的劣化与光学性能之间的关系也进行了检查。用电子气味计和甲硫氨酸溶液测量气味特征，甲硫氨酸溶液是呼吸恶臭的主要原因。使用光谱透射仪和数字色度计测量光学性质和颜色特性。结果表明：（1）义齿基托树脂的气味值随浸泡时间的延长而增加，（2）气味特征与变色特征之间存在显著的高度相关性，（3）临床光的辐射光特性对修复复合树脂和涂敷树脂的力学性能和变色特性有显著影响，固化单元。我们的研究结果表明，树脂的气味特性和光学性能的测量可能是一个简单而有用的方法来检查树脂的劣化。

There are a few reports concerning discoloration and odor characteristics during deterioration of denture base resins and other dental resin materials, although dental resins such as a denture base resin may be a major cause of breath malodor. The purpose of this study was to investigate the odor characteristics and deterioration of acrylic and polysulfone denture base resins. The relationship between the deterioration and optical properties of light-activated restorative composite resins and paint-on resins for shade modification of restorative resins were also examined. The odor characteristics were measured with an electrical odor meter and methlmercaptan solution which was a major cause of breath malodor. The optical properties and color characteristics were measured using a spectral transmittance meter and a digital chroma meter. The results obtained were, (1)the values of odor of denture base resins increased with increasing period for immersion in the methlmercaptan solution, (2)there was significant high relationship between the odor characteristics and discoloration characteristics, (3)the mechanical properties and discoloration characteristics of restorative composite resins and paint-on resins were significantly influenced by the radiation light characteristics of clinical light-curing units. Our results indicated that measurements of the odor characteristics and optical properties of resin may be a simple and useful method for examining the deterioration of the resin.