东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

4种全瓷材料单层及双层结构颜色再现的差异性比较研究

ISSN号：1003-9872
期刊名称：《口腔医学》
时间：0
分类：R783.1[医药卫生—口腔医学;医药卫生—临床医学]
作者机构：[1]广西医科大学附属口腔医院修复科,广西南宁530021
相关基金：广西医疗卫生重点科研课题（重2012017）

作者：郭建徕, 黄冬梅[1], 黄琳惠[1], 陆建志[1], 覃媛[1], 张天[1], 廖红兵[1]

关键词：牙科全瓷, 单层结构, 双层结构, 色彩参数, 目测评价, all-ceramic, monolithic , bilayered , color parameters, visual estimation

中文摘要：

目的对4种全瓷材料单层结构及双层结构颜色再现的差异性进行比较,为全瓷材料的灵活应用提供参考。方法选择4种全瓷材料：IPS E.maxPress、Vita In-Cream YZ氧化锆、Cercon HT氧化锆、爱尔创Upcera ST氧化锆,分别为3例患者制作4种全瓷材料单层结构（M组）及双层结构（B组）的全冠,通过比色仪测修复体的Lab值及目测法评价修复体的美学效果,对单层及双层结构全瓷冠的颜色再现能力进行比较。结果全瓷材料的结构对L＊、a＊、b＊值均没有影响;全瓷材料的种类对a＊、b＊值有显著影响（P〈0.001）;全瓷材料的种类和结构的交互作用对a＊值有影响（P=0.040）。全瓷材料的结构和种类对目测评分均有显著性影响,且存在交互作用。目测评价的SNK结果表明Vita-M组与Cercon-M组与其他6组间有显著性差异。结论 4种全瓷材料的双层结构修复体均能满足临床上的需要,单层结构组的Vita与Cercon HT修复体不被接受而另两种材料的可以。临床上选择修复材料时必须考虑材料的半透性、自然牙的通透性、颜色的分布、对修复体美学和强度的要求。在自然牙通透性低,颜色较单一,对强度要求高的时候可以考虑单层结构的修复体。

英文摘要：

Objective To compare the differencein color reappearance of bilayered and monolithic molar crown fabricated with four different kinds of Dental ceramics materials. Methods Bilayered and monolithic molar crowns were fabricated with four different kinds of Dental ceramics materials for 3 different patients：IPSE, max Press, VITA in-eeram YZ zirconia, Cercon HT zireonia, Upcera ST zirconia. Color parameters of the crowns were measured with Vita Easy shade Spectrophotometer, and the color difference （ A E） of crowns and contralateral teeth was calculated. The effect of color reappearance of crowns was assessed by ten ;color Trained examiners. Results The layers of all-ceramic restoration exhibited no influence on the mean values of L ＊ ,a ＊ and b ＊ ; the kind of all-ceramic Material exhibited significant influence on the values of a ＊ and b ＊（P 〈 0. 001 ） ; the interaction of layers and kinds of all-ceramic Materials showed influence on the values of a ＊（ P = 0. 040）. In terms of the visual estimation results, the monolithic crowns fabricated with VITA in-ceram zirconia,Cercon HT zirconia were not receivable while the others were. Conclusions The four studied all-ceramic bilayered crowns could achieve acceptable aesthetics ;the monolithic molar crowns fabricated with IPS E. max Press, Upcera ST zirconia could achieve acceptable aestheticswhile the monolithic crowns fabricated with VITA in-ceram YZ zirconia, Cereon HT zirconia couldn＇ t. The clinical selection of restorative materialsmust be based on the transparency of all-ceramic materials and natural teeth, the distribution of color,the balance for color and intensity. On the condition that the teeth is of low opacity with monotonous color and supports the heavy loading, the monolithic restorations could be considered.

同期刊论文项目