Spektrofotometrinė ir mikroskopinė keraminių medžiagų lyginamoji analizė

Amilevičiūtė, Greta; Bakšytė, Vita

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Spektrofotometrinė ir mikroskopinė keraminių medžiagų lyginamoji analizė

Amilevičiūtė, Greta; Bakšytė, Vita

URI: http://dspace.kaunokolegija.lt//handle/123456789/2467

Data: 2019-06-30

Santrauka:

Skirtingų keraminių medžiagų dentino pirminių bandinių ir laikytų įvairiuose skysčiuose (3 ir 6 savaites) spalvinio stabilumo ir paviršiaus lyginamoji analizė, naudojant spektrofotometrą ir mikroskopą

Description:

Nowadays, there are plenty of attitudes about aesthetics and beauty that people value subjectively, but first and foremost, most people draw attention to the visual appearance, face, and in communication people focus on the mouth of the interlocutor, so the smile is of great importance to the first impression. The aesthetic smile is determined by many factors such as the shape of the teeth, the positioning in the bow and, of course, the color. The color and the factors associated with its variation are often analyzed in the literature, but the discoloration of dental restorations in scientific literature is less frequent. The study of ceramic materials used in dentistry was carried out to determine the color stability of specific ceramic materials. The study consisted of five ceramic materials from different manufacturers (VITA; Noritake; Heraeus - Kulzer; IPS e.max; ZI-CT), the samples of which were placed in three different liquids (black coffee, red wine, cola) to determine how much of each sample of ceramic material has come into contact with color and whether these liquids have led to changes in the surface of the test plates. Spectrophotometer and electronic microscope were used for accurate results. In the first part, the concept of aesthetics, perception of colors, manufacturers' reviews of ceramic materials (VITA; Noritake; Heraeus - Kulzer; IPS e.max; ZI-CT) are theoretically reviewed. The second part, based on the study, describes the results of the color stability and surface changes of ceramic materials, which were determined using a spectrophotometer and a microscope. So, the research showed that all samples of ceramic materials changed color at least minimally. Vita VM9 's color (after storage in liquids for 3 weeks) and Noritake Cerabien ZR (after storage for 6 weeks) changed most, and the most colorfully stable ceramics (after 3 and 6 weeks) are in Creation ZI- CT ''. Also, under the microscope, at least minimal changes in specimens and surfaces of ceramic materials have been detected for all ceramic materials (VITA; Noritake; Heraeus - Kulzer; IPS e.max; ZI-CT). The most noticeable changes in sample reliefs are seen in Noritake Cerabien ZR, after storage in different liquids, and the slightest changes are found in the Creation ZI-CT.

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