This study aimed to define the levels of vitamin D3 in postmenopausal women and
their relation with bone mineral density (BMD). The study included 83 women (48-81 year)
who visited the Department of radiology of Al Asad hospital in Lattakia. Bone m
ineral density of
the lumbar spine (L1–L4) and total hip was measured by dual-energy X-ray absorptiometry (DXA).
Blood samples were collected to assay 25(OH)D3 and Ca.
The mean level of 25(OH)D3 was 18.87 ng/ml (6.96 SD) and the prevalence of
vitamin D3 difficiency { 25(OH)D3<20 ng/ml} was 64%. No correlation was found
between BMD and 25(OH)D3 levels [P value>0.05], and no correlation was found between
25(OH)D3 and age or body mass index (IMD). We found a strong correlation between
25(OH)D3 and duration of sun exposure (P value = 0.01). Conclusion: Hypovitaminosis D3
is very common among postmenopausal women. Vitamin D33 status may not be an
important determinant of bone health.
Soft laser applications continue to improve local bone mineral density which is considered the most important factor in dental implant success.
This study aims to evaluate the Trabecular to Cortical bone ratio (TCr) index -as a simple easy measureme
nt index- that expresses the bone mineral density. This is to be able to predict the success of dental implants.
The study included 40 patients, who had a single implant in the lower molar region. The patients are divided into two groups: 20 patients had an implant with a soft laser application, i.e. GaAlAs laser (wavelength 830 nm), and 20 patients had an implant without a soft laser application.
Ordinary Analog periapical radiographs were used with calibration Stepwedge of pure aluminum, a medical Dijora program was used to measure radiographically local bone density in the periapical radiographs, and a panoramic Tomography was made to study TCr and two bone density indices (thickness ratio x density ratio) and (equivalent Aluminium thickness). All were measured during the period before implantation and 3, 6, and 9 months after the implantation.
The study found a strong linear correlation between the TCr and (thickness ratio x density ratio) 0.001>P, R2= 0.842 36(r = 0.8. and equivalent Aluminium thickness(
0.001> P, R2 = 0.656735, (r = 0.8).
The study shows that TCr index expresses both radiographic indices which reflect the local bone density, which means that the TCr is associated with such density. Therefore, it can be used as an easy way to predict the quality of bone, and prognosticate the success of dental implants.
