THICKNESS OF CEMENTUM DENTIN IN MESIAL ROOTS OF MANDIBULAR 1ST MOLARS

被引:46
作者
BERUTTI, E
FEDON, G
机构
关键词
D O I
10.1016/S0099-2399(06)81211-2
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The mesial roots of 15 human first lower molars, along with the corresponding half of the tooth crown, were studied to determine the thickness of dentin-cementum. A device was developed whereby these could be embedded in resin with a precisely known orientation in space. The roots were radiographed in mesiodistal and vestibular-lingual projections, then sectioned perpendicular to the canal axis in the coronal third. Thickness of dentin-cementum was compared on sections and radiograms; results showed that the amount of hard tissue is effectively about one fifth less than that appearing on the radiogram.
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页码:545 / 548
页数:4
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