Measuring of Mandible Bone Density in Dogs Using /Digital Radiography/ Radiovisigraphy

Abstract

Radiological diagnostics serves as one of the basic monitoring techniques in veterinary dental practice. The recent up-to-date literature data based on the findings of digital radiology/radiovisiography (RVG) in general dentistry inspired the authors to present its possible use in clinical veterinary dentistry. The digital radiography used in this study was RVG Trophy Radiologie SA 2001 device equipped with software for linear measurements (readings), densitometry, setting of contrast of radiography image, 3D image manipulation, zooming of detail and orientation handling. The aim of the study was to evaluate the bone mineral density of the alveolar part of the lower jaw in seven Scottish terriers. Bone mineral density measurement was performed around the central lower incisors by converting gray scale values into equivalent aluminum thickness (mm Al). The mean bone mineral density was in the range of 4.31-6.20 mm Al with no significant statistical difference between left and right incisors (p>0.01). Our results showed that the combination of RVG and aluminum step wedge etalon is a reliable tool to measure bone mineral density around the lower central incisors in dogs. This method can be considered as comfortable for manipulation in everyday use in clinical veterinary practice.

The developing juvenile distal tibia: Radiographic identification of distinct ontogenetic phases and structural trajectories

“…Notably, these colours were attributed to different bone intensities, not bone densities due to a lack of calibration phantom. The presence of an aluminium step wedge presents an opportunity to correlate grey level values to a measure of relative bone density, using methods adopted within radiographic absorptiometry (Bowen et al, 2013 ; Hirvasniemi et al, 2019 ; Ilić et al, 2020 ; Nackaerts et al, 2007 ; Sun et al, 2008 ; van Rijn et al, 2000 ).…”

“…Radiographic absorptiometry is a technique utilised for quantification of bone density within dental (Nackaerts et al, 2007 ; Sun et al, 2008 ) and veterinary examinations (Bowen et al, 2013 ; Ilić et al, 2020 ). It has also been examined as a clinical screening tool for assessing bone density in human patients to identify those with osteoporotic risk (Gasser et al, 2005 ).…”