Introduction Osteogenesis imperfecta (OI) is a human genetic disorder of increased bone fragility and low bone mass. Severity varies widely, ranging from intrauterine fractures and perinatal lethality to very mild forms without fractures. There is variable association of typical extra skeletal manifestations with the disorder, including blue sclera, dentinogenesis imperfecta, hyperlaxity of lig...

PURPOSE This study was performed to evaluate the prevalence of all types and subtypes of dental anomalies among 7- to 35-year-old patients by using panoramic radiographs. MATERIALS AND METHODS This cross-sectional study was conducted on 1649 people in Hamadan City, in 2012-2013. The prevalence of four types and 12 subtypes of dental anomalies was evaluated by two observers separately by using...

Case: A 13-year-old female patient presented with fever, disturbed consciousness, and convulsion. She had Jeune syndrome with mitral regurgitation and mental retardation. Cerebral hemorrhage, vegetation of mitral valve and poor oral hygiene demonstrated clinical definite diagnosis of IE by Duke Criteria. Bacterial aneurysm would cause to be cerebral hemorrhage that was no worsening by Computed ...

Dentinogenesis imperfecta (DGI) type II is an autosomal dominant disease characterized by a serious disorders in teeth. Mutations of dentin sialophosphoprotein (DSPP) gene were revealed to be the causation of DGI type II (DGI-II). In this study, we identified a novel mutation (NG_011595.1:g.8662T>C, c.135+2T>C) lying in the splice donor site of intron 3 of DSPP gene in a Chinese Han DGI-II pedi...

BACKGROUND Osteogenesis imperfecta (OI) is a group of closely related inherited diseases characterized by abnormal bone fragility. The current clinical classification system delineates 6 types, one of which (type II) is so severe that mortality is 100%, either intrauterine or perinatal. The types are differentiated by clinical groups, by severity, and by the presence or absence of other feature...

Mutations in the DSPP gene have been identified in nonsyndromic hereditary dentin defects, but the genotype-phenotype correlations are not fully understood. Recently, it has been demonstrated that the mutations of DSPP affecting the IPV leader sequence result in mutant DSPP retention in rough endoplasmic reticulum (ER). In this study, we identified a Korean family with dentinogenesis imperfecta...

High-resolution synchrotron radiation computed tomography (SRCT) and small-angle x-ray scattering (SAXS) were performed on normal and dentinogenesis imperfecta type II (DI-II) teeth. The SRCT showed that the mineral concentration was 33% lower on average in the DI-II dentin with respect to normal dentin. The SAXS spectra from normal dentin exhibited low-angle diffraction peaks at harmonics of 6...

OBJECTIVES Search in PubMed with keywords "enzymes, dentinogenesis, and dental caries" revealed only 4 items, but when combined with "enzymes, osteogenesis, and osteoporosis" as high as 404 items resulted. Dental caries was associated with an order of magnitude fewer studies than the chronic bone disease, osteoporosis. This observation motivated this review. MATERIAL AND METHODS A comprehensi...