PMID: 8606333Oct 1, 1995Paper

A laboratory model for dental radiographic studies

Journal of Oral Rehabilitation
S M Jenkins, P M Dummer

Abstract

Though a number of laboratory models have been developed to study the effects of X-ray geometry on the appearance and relative positions of anatomical landmarks, such as the amelocemental junction and alveolar crest, many have failed to take into account the three-dimensional nature of the alveolus and its spatial relationships with the teeth. As a result, the findings of many ex vivo investigations must be questioned. The aim of this investigation was to develop and refine a new laboratory method for experimental dental radiography utilizing a series of anatomical radio-opaque acrylic models containing extracted teeth. The method allows adjustment of the beam-object relationship through the use of precision-made wedges, which are able to tilt the models through a series of angles thus simulating in vivo changes in both vertical and horizontal X-ray beam angulation. The technique is capable of being used in studies involving assessment of alveolar bone height or the depth of carious lesions. The precision of the method was tested by radiographing in nine different positions a test device consisting of four small amalgam fillings embedded in a perspex sheet. Following removal and replacement, exposures of the test device were re...Continue Reading

References

Jan 1, 1989·Journal of Periodontal Research·E HausmannR J Genco
Feb 1, 1987·Scandinavian Journal of Dental Research·I SewerinK Stoltze
Apr 1, 1983·International Endodontic Journal·P M Dummer, D Miles
Dec 1, 1981·Journal of Clinical Periodontology·D S GreenfieldP Goldhaber

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Citations

Sep 1, 1995·Journal of Oral Rehabilitation·S M JenkinsR G Newcombe

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