RELIABILITY OF A PARALLELING INSTRUMENT FOR DENTAL RADIOGRAPHS

被引：15

作者：

DUBREZ, B

JACOTDESCOMBES, S

CIMASONI, G

机构：

[1] UNIV GENEVA,FAC MED,SCH DENT,DIV PHYSIOPATHOL & PERIODONTOL,GENEVA,SWITZERLAND

[2] UNIV GENEVA,FAC SCI,CTR INFORMAT,GENEVA,SWITZERLAND

来源：

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS | 1995年 / 80卷 / 03期

关键词：

D O I：

10.1016/S1079-2104(05)80395-6

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The reliability of a paralleling instrument for dental radiographs was retrospectively evaluated in the course of a 6-month clinical study. The angular variation between successive exposures was precisely quantified. Ninety-one percent of the angular variations were below a 1.4 degree threshold, but some paired images,were found unsuitable for quantitative analysis. A mathematic procedure to assess the global angular projection error of any similar coupled x-ray cone-film holder device is proposed. This mathematic procedure should be routinely used to check superimposability of serial radiographs before density quantification or subtraction.

引用

页码：358 / 364

页数：7

共 28 条

[1] THE INTERFACE ZONE OF INORGANIC IMPLANTS INVIVO - TITANIUM IMPLANTS IN BONE [J].