Application of alumina coping to porcelain laminate veneered crown: part 1 masking ability for discolored teeth.
Application of alumina coping to porcelain laminate veneered crown: part 1 masking ability for discolored teeth.
复制标题
氧化铝内冠在烤瓷贴面冠上的应用：第 1 部分对变色牙齿的遮盖能力。
DOI：
10.4012/dmj.23.180
复制
发表时间：
2004
影响因子：
2.5
通讯作者：
Y. Kozono
中科院分区：
文献类型：
--
作者：
M. Okamura;Ker;H. Kakigawa;Y. Kozono
致密烧结的高纯氧化铝已成功地用作全瓷冠的冠顶。为了将氧化铝冠应用于变色牙的烤瓷贴面修复，本研究评价了氧化铝冠厚度小于牙冠厚度时的遮盖能力。对0.7 mm厚的烤瓷贴面，采用0.40 mm和0.25 mm的氧化铝贴面，0.7 mm厚的瓷贴面，分别在白色和黑色背景下进行比色检测。随着顶盖的存在，瓷器看起来明显更轻。根据计算的色差增量E和文献，认为对于重度变色的烤瓷贴面来说，厚度为0.25 mm的氧化铝烤瓷贴面的遮盖能力是足够的。
A densely sintered high-purity alumina has been successfully utilized as a coping for all-ceramic crown. In order to apply the alumina coping to the porcelain laminate veneer restoration for the discolored teeth, the present study evaluated its masking ability when it was thinner than the proposed thickness for the crown. Colorimetric examination was performed on white and black backgrounds for the 0.7 mm thick porcelain laminate veneer with 0.40 or 0.25 mm thick alumina coping and 0.7 mm thick porcelain without coping. With the presence of the coping, the porcelain appeared significantly lighter. Judging from the calculated color differences delta E and the literature, it was suggested that the masking ability of the alumina coping would be sufficient with a 0.25 mm thickness for the porcelain laminate veneer for heavily discolored teeth.