HEAD POSITIONING FOR THE PANOREX X-RAY MACHINE
NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT
Pagination or Media Count:
A device was fabricated to enable a subjects head to be positioned so that successive comparable Panorex X-ray exposures could be made of the oral structures. Evaluations of the device were conducted using a dry skull with and without a bite impression to aid in orientation. The results indicate a lesser variability in the measurements obtained when a bite impression is used, but for practical purposes the results obtained without a bite impression seemed entirely adequate for most projected uses. The coefficient of variability was generally less than 2. It is concluded that the head positioning device serves its intended purpose to enable the Panorex X-ray exposure to be used as a longitudinal monitoring tool for periodontic, orthodontic, and other dental studies.
- Medicine and Medical Research
- Medical Facilities, Equipment and Supplies