Complex regional pain syndrome type 1 (CRPS1) refers to a disorder usually caused by trauma; it is characterized by pain, swelling, limited range of motion, vasomotor instability, skin changes, joint stiffness, and patchy bone demineralization. Most often it occurs after trauma. Other etiologies include myocardial ischemia, cerebrovascular accidents, infection and emotional stress. We report a ...

Secondary hyperparathyroidism is a complication of chronic kidney disease, and it develops due to abnormal regulation of calcium and phosphate homeostasis (1). Various factors interact in its development. They are consist of decrease kidney synthesis of 1,25-dihydroxyvitamin D, the, phosphorus retention and impaired calcemic response to parathyroid hormone (1,2). Hence, increasing of parathormo...

Osteoclasts resorb the extracellular matrix of bone by secreting enzymes and acid into a sealed-off compartment that they form upon attachment to the bone surface. Although the lysosomal cysteine proteinases can degrade collagen after the demineralization of bone at low pH, several lines of evidence suggest that collagenase (matrix metalloproteinase-1, EC 3.4.24.7) may also be involved in this ...

Osteoporosis is one of the most common disorders in postmenopausal women, affecting the quality of life and increasing the risk for fractures in minor traumas. Changes in the bone microarchitecture causes static changes in the body and affects motility. In this study, we analyzed two groups of women, one with physiological menopause and one with surgically induced menopause. The diagnosis of os...

Pikular (1955) determined the cholesterol content of compact bone after demineralization with hydrochloric acid. By the digitonide method, the cholesterol content of the organic matter (osseocollagen) was found to be 0-0028-0-0040 g. of cholesterol/100 g. of dry ash-free protein. He also prepared procollagen by the method of Orekhovich, Tustanorskii, Orekhovich & Plotinkora (1948) and showed ch...

The aims of this study were to investigate the effects of hesperidin, a citrus flavonoid, on human root dentin demineralization and collagen preservation, and compare it with chlorhexidine and grape seed extract. Specimens were assigned to different treatment groups: hesperidin, chlorhexidine and grape seed extract. Specimens were subjected to pH cycling by demineralization for 14 h, incubation...

We compared the effect of a novel ion-releasing tooth-coating material that contained S-PRG (surface-reaction type prereacted glass-ionomer) filler to that of non-S-PRG filler and nail varnish on the demineralization of bovine enamel subsurface lesions. The demineralization process of bovine enamel was examined using quantitative light-induced fluorescence (QLF) and electron probe microanalyzer...

The present study examined the mechanism for caries resistance and the pulp responses in vital teeth following the use of the augmented-pressure adhesive displacement technique. Dentin adhesives were applied to the surface of sound dentin disks in 4 experimental groups: non-antibacterial adhesive and gentle adhesive displacement (N-G), non-antibacterial adhesive and augmented-pressure adhesive ...