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A comparative study on color and dimensional stability of esthetic indirect dental materials

구강생물학연구 2019년 43권 4호 p.306 ~ 312
허혜윤 ( Heo Hye-Yun ) - Chosun University School of Dentistry Department of Prosthodontics

손효진 ( Son Hyo-Jin ) - Chosun University Oral Biology Research Institute
허유리 ( Heo Yu-Ri ) - Chosun University School of Dentistry Department of Prosthodontics
손미경 ( Son Mee-Kyoung ) - Chosun University School of Dentistry Department of Prosthodontics

Abstract


In selecting dental materials, color and dimensional stability play key roles in mechanical characteristics as well as esthetic aspects.
While resin nano ceramics have been examined to determine their mechanical characteristics in carious experiments, few studies have focused on their intra-oral stability, specifically their long-term color stability or water sorption. In this study, ceramic, resin nano ceramic, and composite resin were analyzed to evaluate their color stability, water sorption, and solubility. The amount of characteristic changes was measured using a spectrometer, an electronic scale, and a caliper for durations of 1, 2, 4, and 8 weeks. The results showed that ceramic was the most stable among all materials, whereas resin nano ceramic and composite resin demonstrated time-dependent changes, which require more clinical considerations for long-term use.

키워드

Color stability; Esthetic indirect dental materials; Water absorption; Water solubility
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