background: to investigate the relationship between renal stone formation and osteoporosis. methods: eight hundred thirty healthy subjects aged between 20 and 76 years were randomly selected from 50 clusters to take part in the study. of these, 68 (8.2%) had a previous history of renal stone disease. all participants underwent clinical exami nation and bone mineral densitometry of the lumbar sp...

background patients with thalassemia major and intermedia are susceptible to osteopenia and osteoporosis. the mechanism of osteoporosis in these patients is multifactorial. transfusion related iron overload in endocrine organs leads to impaired growth hormone secretion, diabetes mellitus, hypothyroidism, hypoparathyroidism, lack of sex steroids and vitamin d deficiency that contribute to impair...

OBJECTIVES The aim of this study was to compare a nanocrystalline hydroxyapatite (NCHA), NanoBone(®) and a deproteinized bovine bone mineral (DBBM), Bio-Oss(®) with a collagen membrane on the horizontal ridge width alterations following tooth extraction, in addition to histologic aspects of the grafted extraction sockets. MATERIAL AND METHODS In this randomized clinical trial, 28 symmetrica...

Purpose The aim of this prospective pilot study was to compare alveolar ridge preservation (ARP) procedures with open-healing approach using a single-layer and a double-layer coverage with collagen membranes using radiographic and clinical analyses. Methods Eleven molars from 9 healthy patients requiring extraction of the maxillary or mandibular posterior teeth were included and allocated int...

Introduction P-15 a fifteen residue synthetic peptide (GTPGPQGIAGQRGVV), is a structural analogue of the cell binding domain of Type 1 collagen [1]. P-15 adsorbed on anorganic bovine mineral (ABM-P15) scaffolds has been shown to enhance bone marrow stromal cell growth [2]. This study aimed to investigate the osteogenic potential of human dental pulp stromal cells (HDPSCs) in monolayer culture c...

PURPOSE The aim of this case report is to present a case of incomplete bone formation after sinus augmentation. METHODS A patient having alveolar bone resorption of the maxillary posterior edentulous region and advanced pneumatization of the maxillary sinus was treated with sinus elevation using deproteinized bovine bone in the Department of Periodontology, Kyung Hee University School of Dent...

Several bone grafting materials have been used in sinus augmentation procedures. Bio-Oss (deproteinized and sterilized bovine bone) has shown to have osteoconductive properties and no inflammatory or adverse responses have been published. In spite of these successful results, histologic data regarding bone augmentation using Bio-Oss in humans is scarce. The purpose of this study was to analyse ...

Aim: The study aimed to evaluate the clinical outcomes of bone augmentation with a mixture cortico-cancellous allograft and xenograft collagen membrane in horizontal knife-edge alveolar crests.
 Material Method: Patients ridge thickness less than 4 mm by preoperative tomography were included study. Twelve patients (10 Female, 2 Male) treated Cortico-Cancellous Allograft Bovine Bone Mineral...

PURPOSE The aim of the present randomized controlled clinical study was to test whether small bony dehiscence defects (≤5 mm) left to heal spontaneously result in the same clinical and radiological outcome as defects treated with guided bone regeneration (GBR). MATERIALS AND METHODS Twenty-two patients who received at least one implant with a small bony dehiscence defect were enrolled in the ...