Service Communautaire d'Information sur la Recherche et le Développement - CORDIS

Database of directly measured radiographic measurements of mandibular cortex on study subjects

Result description:
671 volunteer female subjects in the 45 to 70 year age band, recruited from four European centres, underwent a Dental Panoramic Radiographic examination. Five observers, all oral radiologists but of different experience, made manual measurements of width of the mandibular lower border cortex below the mental foramina bilaterally, and classification of the porosity of the mandibular cortex using the previously published Klemetti index. Data of 661 subjects (mean age 54.8y; sd = 6.19y) were available for analysis, with 140 (21.2%) being classified as having osteoporosis.

Mean within-subject variance for the five observers was 0.126mm (sd = 0.355mm). Repeatability is the difference between two measurements made by any pair of observers for the same subject and was expected to be less than 0.983 mm for 95% of pairs of observations.

Potential applications:
This dataset is available for use in determining the diagnostic validity of cortical thickness or cortical porosity in diagnosis of osteoporosis: the principal purpose of the OSTEODENT study. It may however, have applications in another context. We have interest in looking at the prospective value of cortical thickness/porosity as a means of assessing 'bone quality' in dental implant planning.

End-users of results:
In the context of osteoporosis, the end-users are: 1. the OSTEODENT consortium, 2. Other future collaborative researchers (subject to mutual agreement of consortium), 3. Dental practitioners (subject to receiving appropriate training).

Main benefits:
The innovative aspect of this dataset is in the context of the entire OSTEODENT project. It is part of a robust, comprehensive database of information on a pan-European sample that is larger than any previous set. This dataset may have commercial value in acting as a reference population for subsequent work.

Informations connexes


Hugh DEVLIN, (Senior Lecturer)
Tél.: +44-1612-756849
Fax: +44-1612-756840