The literature on chondrogenesis in vitro is rich in knowledge of the products of differentiation but presents little information about agents which may initiate cartilage cell differentiation or conditions which control cartilage tissue morphogenesis . Previous investigations by our research group (18, 19) demonstrate that the character of the substratum may control differentiation . For examp...

Abstract Background The extraction of DNA from skeletal remains with good quality and quantity is often challenging for the ability to generate typing. Previous studies demonstrated total demineralization fresh teeth bones; however, application in old has been less performed. To obtain high yield amount extracted remains, objective this study was focused on exploring factors influencing process...

This in vitro study evaluated the preventive potential of experimental pastes containing 10% and 20% hydroxyapatite nanoparticles (Nano-HAP), with or without fluoride, on dental demineralization. Bovine enamel (n=15) and root dentin (n=15) specimens were divided into 9 groups according to their surface hardness: control (without treatment), 20 Nanop paste (20% HAP), 20 Nanop paste plus (20% HAP...

The purpose of this study was to evaluate the degree of demineralization of artificially induced caries-affected human dentin by an in vitro microbiological method. The occlusal surfaces of 6 human molar teeth were abraded until a flat surface was obtained, and the enamel was removed to expose the occlusal dentin surface. These teeth were sectioned in 12 halves in the vestibular-lingual directi...

OBJECTIVE Osteoporosis, osteosclerosis, and lytic bone lesions have been observed in patients with systemic mastocytosis (SM). We examined bone mineral density (BMD) biochemical turnover markers and serum tryptase levels in SM, which is considered a rare disease. MATERIALS AND METHODS Seventeen adult patients (5 females, 12 males; median age: 33 years, range: 20-64) with mastocytosis were inc...

Genetic studies have shown that variations in enamel formation genes are associated with caries susceptibility. The aim of this study was to test in vitro whether variants in these genes are associated with dental enamel demineralization in a Streptococcus mutans biofilm model. DNA and enamel samples were obtained from 213 individuals. DNA was extracted from saliva, and 16 single nucleotide pol...

We aimed to quantify periarticular osteoporosis and investigate its significance in 45 patients with rheumatoid arthritis (RA) and 106 controls. Dual-energy X-ray absorptiometry (DXA) was used to determine the ratio of shaft to periarticular bone mineral density (BMD) as an index of periarticular demineralization. Periarticular osteoporosis was measured by conventional radiography. The BMDs of ...

OBJECTIVE This in-vitro study was done to evaluate the effects of two different seal materials, Duraflor™ and Enamel Pro(®) Varnish, on enamel demineralization adjacent to orthodontic fixed appliances. METHODS Seventy-two extracted solid premolars were allocated to three groups as one control and two study groups after brackets were placed and bonded with Transbond™ XT. The control group rece...

Osteitis fibrosa cystica (OFC) is a late sequela of untreated hyperparathyroidism caused by the autonomous secretion parathyroid hormone (PTH). It characterized bone pain, skeletal deformities, and pathological fractures. OFC hypersecretion PTH, leading to demineralization We report case unusual presentation in middle aged woman who noticed gradual shortening her height within particular period...