statement of problem: in recent years, numerous reports have been presented in the literature, about gingival overgrowth induced by nifedipine- a calcium antagonist- prescribed for hypertension and certain types of angina. purpose: the purpose of the present study was to investigate the prevalence rate of nifedipine induced gingival hyperplasia in patients and its probable relationship with age...

Large-scale genomic analyses of ancient human populations have become feasible partly due to refined sampling methods. The inner part of petrous bones and the cementum layer in teeth roots are currently recognized as the best substrates for such research. We present a comparative analysis of DNA preservation in these two substrates obtained from the same human skulls, across a range of differen...

This study evaluated the clinical, radiographic, and histologic response to the composite use of Bio-Oss porous bone mineral and autogenous bone in combination with a Bio-Gide bilayer collagen membrane to achieve regeneration when treating human periodontal bone defects. Preoperative recordings for four treatment areas included radiographs, clinical probing depths, and attachment levels; these ...

BACKGROUND Mineral trioxide aggregate, or MTA, is a new material developed for endodontics that appears to be a significant improvement over other materials for procedures in bone. It is the first restorative material that consistently allows for the overgrowth of cementum, and it may facilitate the regeneration of the periodontal ligament. CASE DESCRIPTION The authors present five cases in w...

Root resorption (RR) is defined as the loss of dental hard tissues because of clastic activity inside or outside of tooth the root. In the permanent dentition, RR is a pathologic event; if untreated, it might result in the premature loss of the affected tooth. Several hypotheses have been suggested as the mechanisms of root resorption such as absence of the remnants of Hertwig's epithelial root...

The combined effect of beta-tricalcium phosphate and basic fibroblast growth factor was observed in the regeneration of periodontal tissue in dogs. For this purpose, either beta-TCP and FGF-2 (beta-TCP/FGF-2 group) or FGF-2 alone (FGF-2 group) was applied in intrabony defects. The control group received beta-TCP alone. The tissues were histologically examined at 2, 4, or 8 weeks following treat...

Cloned cementoblasts (OCCMs), periodontal ligament fibroblasts (SV-PDLs), and dental follicle (SV-F) cells obtained from mice were used as a tool to study periodontal tissue engineering. OCCM, SV-PDL, and SV-F cells were seeded onto three-dimensional poly lactic-co-glycolic acid (PLGA) scaffolds and cultured with the use of bioreactors or implanted subcutaneously in severe combined immune defic...

objective: the endometrial hyperplasia measured by ultrasound in polycystic ovary syndrome (pcos) women is strongly related to pathologic endometrial thickness, but there is no consensus on the relation between serum luteinizing hormone (lh) and either of these factors: pathologic endometrial hyperplasia and body mass index (bmi). materials and methods: in this observational cross-sectional stu...