IADR Abstract Archives
Impact of General Bone Mineral Density on the Cervical Vertebrae
Objectives: Ojective was to detect if the radiographic bone density (RD) detected by cone beam computed tomography (CBCT) in first and second cervical vertebra is affected by general bone mineral density (BMD) in postmenopausal females.
Methods: In the present study were included 127 postmenopausal females aged 54-91 years (average age 70.4±8.9 years), attending for dental implant treatment.
For all patients were made: CBCT examinations (Next generation i-CAT, Kavo eXam vision) and BMD measurements of lumbar spine and both femoral necks by dual energy X-ray absorptiometry (DXA) (Lunar DEXA DPX-NT, GE Medical Systems). The worst T-score reading from both were taken into account and patients were divided into 3 groups: normal bone density (N-39) (T-score ≥ -1.0), osteopenia (N-58) (T-score from -1.0 till -2. 5) and osteoporosis (N-30) (T-score ≤ -2. 5).
CBCT images were analysed with OnDemand3D Dental software (Cybermed). RD values were measured in axial section in body of the cervical first and the second vertebrae. Differences between groups was evaluated by ANOVA analysis of variance and subsequent Bonferroni test.
Results: The age differences between groups were not statistically significant (p=0.29).
The highest RD values in first and second cervical vertebrae was observed among females with normal bone mineral density, and lowest among females with osteoporosis. Respectively RD values in first cervical vertebra was 86.5±84.8 HU in normal BMD group, 28.1±115.4 HU in osteopenia group, 0.7±86.1 osteoporosis group (p=0.02). RD values in the second vertebra was 185.1±85.3 HU in normal BMD group,123.4±98.4 HU in osteopenia group,106.6±89.9 in osteoporosis group (p=0.01).
Conclusions: Postmenopausal female with reduced general BMD had reduced radiographic bone density of the first and the second cervical vertebrae detected by CBCT.
Methods: In the present study were included 127 postmenopausal females aged 54-91 years (average age 70.4±8.9 years), attending for dental implant treatment.
For all patients were made: CBCT examinations (Next generation i-CAT, Kavo eXam vision) and BMD measurements of lumbar spine and both femoral necks by dual energy X-ray absorptiometry (DXA) (Lunar DEXA DPX-NT, GE Medical Systems). The worst T-score reading from both were taken into account and patients were divided into 3 groups: normal bone density (N-39) (T-score ≥ -1.0), osteopenia (N-58) (T-score from -1.0 till -2. 5) and osteoporosis (N-30) (T-score ≤ -2. 5).
CBCT images were analysed with OnDemand3D Dental software (Cybermed). RD values were measured in axial section in body of the cervical first and the second vertebrae. Differences between groups was evaluated by ANOVA analysis of variance and subsequent Bonferroni test.
Results: The age differences between groups were not statistically significant (p=0.29).
The highest RD values in first and second cervical vertebrae was observed among females with normal bone mineral density, and lowest among females with osteoporosis. Respectively RD values in first cervical vertebra was 86.5±84.8 HU in normal BMD group, 28.1±115.4 HU in osteopenia group, 0.7±86.1 osteoporosis group (p=0.02). RD values in the second vertebra was 185.1±85.3 HU in normal BMD group,123.4±98.4 HU in osteopenia group,106.6±89.9 in osteoporosis group (p=0.01).
Conclusions: Postmenopausal female with reduced general BMD had reduced radiographic bone density of the first and the second cervical vertebrae detected by CBCT.