Shetty Prajwal, Purayil Tina-Puthen, Ginjupalli Kishore, Pentapati Kalyana-Chakravarthy
Department of Conservative Dentistry & Endodontics, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Department of Dental Materials, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
J Oral Biol Craniofac Res. 2021 Jan-Mar;11(1):53-56. doi: 10.1016/j.jobcr.2020.11.011. Epub 2020 Nov 19.
Polishing of dental composite restorations to achieve a highly smooth and reflective surface not only enhances esthetics but also their color stability and improves resistance to staining. The objective of this study was to evaluate the effect of beverages on the color stability of nanoceramic composites polished using different techniques.
80 samples of ceram. X SphereTEC one were prepared by condensing the material into a stainless-steel split mold and divided randomly into two groups. Group I was subjected to polishing using Sof-Lex system™ disks, and Group II was kept unpolished. Each group was subdivided into four sub-groups of 10 samples each. Each subgroup samples were immersed into designated beverages (Tropicana orange juice, Coco-cola, Nescafe coffee, and distilled water) for a duration of 15mins/day for 15 days. The color of all specimens before immersion, one day, and 15 days after immersion was measured using a Spectrophotometer.
Significant staining of the material was found with cola drinks and coffee compared to orange juice and distilled water. Polished material showed better resistance to staining by various beverages compared to control group.
Nanoceramic composites exhibited superior color stability after polishing with Sof-Lex system™. Among the beverages, coco-cola significantly altered the color of the composite.
对牙科复合树脂修复体进行抛光以获得高度光滑且有光泽的表面，不仅能提升美观度，还能增强其颜色稳定性并提高抗染色性。本研究的目的是评估饮料对使用不同技术抛光的纳米陶瓷复合材料颜色稳定性的影响。
通过将材料压缩到不锈钢分体模具中制备80个Ceram. X SphereTEC one样本，并随机分为两组。第一组使用Sof-Lex system™盘进行抛光，第二组不进行抛光。每组再细分为四个亚组，每组10个样本。每个亚组的样本每天浸泡在指定饮料（纯果乐橙汁、可口可乐、雀巢咖啡和蒸馏水）中15分钟，持续15天。使用分光光度计测量所有样本在浸泡前、浸泡一天和浸泡15天后的颜色。
与橙汁和蒸馏水相比，可乐饮料和咖啡对材料有明显的染色。与对照组相比，抛光后的材料对各种饮料的染色具有更好的抵抗力。
使用Sof-Lex system™抛光后，纳米陶瓷复合材料表现出优异的颜色稳定性。在这些饮料中，可口可乐显著改变了复合材料的颜色。
