Axial wall convergence of full veneer crown preparations - Documented for dental students and general practitioners

被引：48

作者：

Annerstedt, A ^{[1
]}

Engstrom, U ^{[1
]}

Hansson, A ^{[1
]}

Jansson, T ^{[1
]}

Karlsson, S ^{[1
]}

Liljhagen, H ^{[1
]}

Lindquist, E ^{[1
]}

Rydhammar, E ^{[1
]}

TyremanBandhede, M ^{[1
]}

Svensson, P ^{[1
]}

Wandel, U ^{[1
]}

机构：

[1] GOTHENBURG UNIV,FAC ODONTOL,DEPT PROSTHET DENT,S-41390 GOTHENBURG,SWEDEN

来源：

ACTA ODONTOLOGICA SCANDINAVICA | 1996年 / 54卷 / 02期

关键词：

convergence angle; crowns; dental abutments;

D O I：

10.3109/00016359609006014

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The convergence angle in 478 full crown preparations was assessed. Of these preparations, 351 had been performed by general practitioners and 127 by dental students. Groups of preparations performed on incisors, premolars, and molars were compared, as were preparations performed by dentists and students. Two different convergence angles were measured for each tooth, buccolingually and mesiodistally. The results showed a mean angle of 21 degrees. The mean values for premolars and molars differed significantly. When a comparison was made of preparations performed by students, a significant difference was found between premolars and molars. The same comparison for general practitioners showed a significant difference both for incisors compared with molars and for premolars compared with molars. A wide range was found for the convergence of the axial walls, especially for the preparations performed by general practitioners.

引用

页码：109 / 112

页数：4

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