Evaluation of Changes in the Mandibular Angular Cortex Using Panoramic Images

Abstract

The mandible like other bones of the body has a series of anatomical landmarks that can serve as radiographic indicators. Using these indicators it is possible to evaluate changes in bone with respect to its quantity or quality by different methods of taking images. Osteoporosis is a significant problem of the elderly, especially postmenopausal women. The aim of this study was to determine the thickness of the mandiublar angular cortex on the right and left sides of women as well as bone resorption in different age groups using panoramic radiography. One hundred female patients were selected from applicants for panoramic radiological services who did not have a history of systemic bone disease, hysterectomy, or taking hormonal supplements.Using a questionnaire, the selected subjects were asked questions about their education, job, marital status, number of pregnancies, age, menopausal status, and history of backaches. After statistical calculation it became clear an increase in age will increase bone resorption, and this process is related to a decrease in the sexual hormones of women. Higher bone resorption was detected in women with a higher number of pregnancies. Also, the higher educated the patient, the less bone resorption. Women with a background of backaches had more bone resorption to those who did not have this backache background. Finally, it was recognized that it would be possible to clear the quality dimension of the process of mandibular bone resorption.

Mandibular Radiomorphometric Measurements as Indicators of Possible Osteoporosis in Celiac Patients

“…Panoramic radiography is frequently use for the diagnosis of disease affecting the teeth and jaws in general dental practice [48,49] . The incidental findings detected on panoramic radiographs can be performed for the identification of women who have no awareness of their low BMD and who could benefit from BMD testing.…”

Osteoporosis and oral bone resorption: a review

“…Women with a history of backaches had more bone resorption comparing to those who did not have it. Finally, it was reported that it would be possible to clear the quality dimension of the process of mandibular bone loss [20].…”

Morphodigital study of bone quality in the mandibular angle in patients with third molar impacted

“…One of the parameters often used for bone metabolism analysis is observation of the mandibular cortex, specifically in the angular region, which is not visible before 15 years of age. Considering that with the use of digital panoramic radiographs, the diagnosis of changes in trabecular bone is radiographically much less evident and thus much more difficult to observe than the changes in the cortical bone region (Ardakani and Niafar 2004), the evaluation of cortical bone constitutes one of several aims of osteoporosis studies (Bras et al 1982a, b;Horner et al 1996). Watanabe (2003) found significant correlation between the cortical thickness of the mandible with the bone density of another site, the forearm, which is a site typically composed by cortical bone.…”

“…Eightyyear-old men have 50% of cortical bone reabsorption, while in the female group, this value is reached at 70 years, and may reach approximately 100% of bone resorption at 90 years. Considering that in panoramic radiographs, the diagnosis of changes in trabecular bone is much less obvious and, in this way, much more difficult to observe than changes in the cortical region (Ardakani and Niafar 2004), evaluation of the mandibular cortex has constituted a major objective of several studies of osteoporosis (Bras et al 1982a, b;Horner et al 1996).…”