Smith P W, Wilson N H
Unit of Prosthodontics, University Dental Hospital of Manchester, United Kingdom.
Int J Prosthodont. 1998 Jul-Aug;11(4):302-6.
The purpose of this study was to investigate the distribution of shades selected for metal ceramic crowns provided at a dental teaching hospital.
Data on the selection of shade for 2,500 metal ceramic crown units, placed over a 5-year period at the University Dental Hospital of Manchester, were collected and analyzed. Only those crowns placed adjacent to minimally restored vital teeth were included in the study.
The results indicate that the most frequently chosen shades were in the mid-range of reddish-brown hue. Furthermore, shades in the reddish-grey range of hue were rarely chosen. The selection of more than one shade for a crown ("mixed shades") was generally restricted to the maxillary anterior teeth.
Knowledge of the distribution of shades selected for permanently luted metal ceramic crowns may be a useful adjunct in shade selection, particularly for the inexperienced operator.
本研究旨在调查一家牙科教学医院提供的金属烤瓷冠所选颜色的分布情况。
收集并分析了在曼彻斯特大学牙科医院5年期间放置的2500个金属烤瓷冠单位的颜色选择数据。本研究仅纳入那些与修复程度最低的活髓牙相邻放置的冠。
结果表明，最常选择的颜色处于红棕色调的中间范围。此外，红灰色调范围内的颜色很少被选择。为一个冠选择多种颜色（“混合色”）通常仅限于上颌前牙。
了解永久粘结金属烤瓷冠所选颜色的分布情况可能对颜色选择有帮助，特别是对于缺乏经验的操作者。
