华西口腔医学杂志2012，Vol.30Issue(4)：417-419,424,4.DOI:10.3969/j.issn.1000-1182.2012.04.022
烧结次数对牙科全瓷开放性总孔体积、透明度和色度的影响
The effects of firing numbers on the opening total pore volume, translucency parameter and color of dental all-ceramic systems
李水根 1庞莉苹 2姚江武1
作者信息
- 1. 福建医科大学口腔医院修复科,福州350002
- 2. 厦门市口腔医院修复科,厦门361003
- 折叠
摘要
Abstract
Objective To evaluate the effects of firing numbers on the total opening pore volume (TPV), translucency parameter (TP) and color of dental all-ceramic systems. Methods Specimens of three kinds of all-ceramics systems were made, i.e. heat pressed all-ceramic (IPS Empress E), alumina all-ceramic (In-Cream alumina blanks) and zirconia all-ceramic (Cercon CAD/CAM zirconia). The specimens' TP, lightness (AL), chroma (AC) and TPY after 1, 3 and 5 firings were measured and calculated by spectrophotometer and surface area/porosity system. The data were analyzed statistically using SAS 8.0 software. Results There were significant differences in TPV, TP, AL and AC for all-ceramic specimens at same number of firings (P<0.05), i.e. IPS>alumina and zirconia for TPV(P<0.05); IPS>zirconia>alumina for TP and AL(P<0.05); IPS and alumina>zirconia for AC(P<0.05). The significant differences also presented in TPV, TP, AL and AC for a same specimen at different number of firings CP<0.05). With increasing number of firings, TPV decreased, and TP, AL and AC increased gradually. There were negative linear correlation between number of firings and TPV, TP, AL and AC(P<0.05). Conclusion Repeated firings will affect TP and AL of all-ceramic restorations via the change of TPV.关键词
烧结/全瓷/总孔体积/色度Key words
firing/ all-ceramic/ total pore volume/ color分类
医药卫生引用本文复制引用
李水根,庞莉苹,姚江武..烧结次数对牙科全瓷开放性总孔体积、透明度和色度的影响[J].华西口腔医学杂志,2012,30(4):417-419,424,4.
