Detecting young Japanese adults with undetected low skeletal bone density using panoramic radiographs

Abstract

Objective: The cortical width below the mental foramen of the mandible determined from panoramic radiographs is a useful screening tool for identifying elderly individuals with a low skeletal bone mineral density (BMD). However, whether the mandible cortical width (MCW) is useful for identifying a low skeletal BMD in men and women of 40 years or younger is not known. Methods: The BMD of the calcaneus was measured by ultrasonography bone densitometry in 158 men and 76 women aged 18-36 years. A logistic regression analysis adjusted for age was used to calculate the odds ratios and 95% confidence interval (CI) of having a low calcaneal BMD, according to the quartiles of the MCW. The areas under the receiver operator characteristic curve (AUC) for identifying participants with a low calcaneal BMD using the MCW were assessed to evaluate the diagnostic efficacy of the MCW. Results: In men, the adjusted odds ratios of a low calcaneal BMD associated with the second, third and lowest quartiles of MCW were 5.66 (95% CI, 0.61-52.23), 5.43 (95% CI, 0.59-50.18) and 33.22 (95% CI, 3.97-276.94), respectively, compared with the highest quartile, while no significant trend in the adjusted odds ratios was observed in women. The AUC for identifying participants with a low calcaneal BMD based on the MCW was 0.796 (95% CI, 0.702-0.890) in men and 0.593 (95% CI, 0.398-0.788) in women. Conclusion: MCW determined from panoramic radiographs can be used to identify undetected low calcaneus BMD in young adult men, but not in young adult women. Dentomaxillofacial Radiology (2011) 40, 154-159.

Radiomorphometric Indices of the Mandible–An Indicator of Osteoporosis

“…Mandibular cortical width and porosity seen on dental panoramic radiographs have been shown to be parameters which are potentially useful for assessing an individual's risk of systemic osteoporosis [4,8,9].…”

Mandibular Cortical Width on Panoramic Images of Children in the Lao People’s Democratic Republic

“…No suitable machines are available in Laos. A number of studies have indicated that a dental panoramic radiograph may be a suitable tool to measure bone mineral densities [12][13][14][15][16][17][18][19][20]24,25) . In this study digital panoramic radiographic equipment was used to obtain the images.…”

“…In this study digital panoramic radiographic equipment was used to obtain the images. Digital panoramic technologies have the benefi t of eliminating errors associated with processing and providing the opportunity of using digital enhancement and measuring tools 7,15,16,21,23) . Digital panoramic radiography also limits radiation exposure as it requires a lower dose than conventional panoramic radiography for image formation.…”

“…Images were exported as DICOM image stacks to the Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry, by a telemedicine system with functions for image viewing, image transfer, DICOM storage real-time video conferencing, and 24 MCW has been shown to be a good measure of bone mass in the mandible compared with the other indices [12][13][14][15][16][17][18][19][20][21][22][23][24][25] . Sisounthone et al 21) have reported that the overall average MCW of 519 Laotian patients aged 7-79 years was lower than that observed in Europeans.…”

Avaliação da qualidade óssea mandibular em crianças com osteogênese imperfeita em uso de pamidronato

“…Nos pacientes com osteoporose, a cortical óssea aparece mais fina e com maior grau de erosão, quando comparado a pacientes com DMO normal. O índice mais utilizado nos estudos é o índice quantitativo mentual, que avalia a espessura da cortical mandibular abaixo do forame mentual (Alonso et al, 2011;Taguchi et al, 2011).…”