COLOR DETERMINATION OF ADDITIVELY MANUFACTURED PERMANENT CONSTRUCTIONS FROM HYBRID MATERIALS
Keywords:
spectrophotometer, optical properties, color, additive manufacturing materialsAbstract
Modern dentistry is increasingly focused on achieving high aesthetic standards in the restoration of lost dental tissues. A fundamental aspect of successful aesthetic dentistry is a thorough understanding of color theory and accurate color matching for natural teeth, which is crucial for high-quality restorations. This review aims to examine the literature on aesthetic color indexes and their determination through digital devices, particularly in relation to modern hybrid materials for additive manufacturing of permanent structures, VarseoSmile Crown Plus and CROWNTEC. In order to carry out the literature review, scientific texts were examined by key words in Bulgarian and English. In aesthetic fixed prosthodontics, dental materials must possess optical qualities that closely match those of natural dental tissues, facilitating accurate color matching. In 1905, Albert Munsell developed a theory defining color space as a sphere, categorizing each color by hue, chroma, and value. In dental practice, natural tooth color can be assessed subjectively with shade guides or objectively using digital spectrophotometers, with the VITA Easyshade® V (VITA Zahnfabrik, Germany) being the most widely used for both natural and artificial teeth. For the newer hybrid materials, VarseoSmile Crown Plus and CROWNTEC, the literature includes only limited laboratory studies examining color stability in experimental samples. Data from clinical studies assessing the color matching of these materials with natural teeth, as well as color stability within the oral environment after final fixation, are currently lacking. This underscores the need for clinical research focused on the aesthetic color properties and color stability of restorations fabricated with additive manufacturing techniques using VarseoSmile Crown Plus and CROWNTEC.
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