Scientific article

Reliability of a paralleling instrument for dental radiographs

Publication date1995

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.

Citation (ISO format)
DUBREZ, Bertrand, JACOT-DESCOMBES, Sabrina, CIMASONI, Giorgio. Reliability of a paralleling instrument for dental radiographs. In: Oral surgery, oral medicine, oral pathology, oral radiology and endodontics, 1995, vol. 80, n° 3, p. 358–364. doi: 10.1016/S1079-2104(05)80395-6
Main files (1)
Article (Published version)
ISSN of the journal1079-2104

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