临床口腔医学杂志2016，Vol.32Issue(5)：312-314,315,4.DOI:10.3969/j.issn.1003-1634.2016.05.021
数字化口腔修复（10）--传统印模对游离龈位置影响的三维分析
Digital restorative dentistry and prosthodontics(10)--Three-dimensional analysis of the effect of the tradition-al impression on the free gingival displacement
许志强 1姚江武1
作者信息
- 1. 厦门医学院口腔医院 福建 厦门 361001
- 折叠
摘要
Abstract
Objective:Utilizing three-dimensional (3D) model analysis to evaluate the amount of free gingival dis-placement produced by the impressions with different impression material. Method:60 anterior teeth from 10 healthy volun-teers were included randomly as the test subjects. An intraoral digital impression were getted prior to the test by intraoral op-tical scanning(CEREC®AC Omnicam). Then using three different impression materials(alginate, polyether, and addition silicone) to make impression in mouth. Stone casts were obtained after the impressions, respectively, and then 3D models were got by scanning with CEREC® AC Omnicam. The 3D models were superimposed with those of intraoral digital im-pression by Geomagic Qualify 2013 soft and the amount of free gingival displacement produced by the impression of different impression materials were evaluated. Result:The displacement amount of free gingival among three impressions of different impression materials were significantly different (P<0.05). The amount of free gingival displacement between alginate and polyether were not significantly different(P>0.05), but the difference were both significant when compared with that of ad-dition silicone and alginate and polyether (P<0.05). The free gingival displacement changed mostly in addition silicone a-mong the three kinds of impression materials(P<0.05). Conclusion:The pressures produced by different impression mate-rials will make the free gingival displacement, which was different among different impression materials. Intraoral digital im-pression can be used to evaluate the position of the free gingiva accurately.关键词
光学印模/传统印模/游离龈/三维分析Key words
Optical impression/Traditional impression/Free gingiva/Three-dimensional analysis分类
医药卫生引用本文复制引用
许志强,姚江武..数字化口腔修复（10）--传统印模对游离龈位置影响的三维分析[J].临床口腔医学杂志,2016,32(5):312-314,315,4.
