BACKGROUND Dentin dysplasia type I (DD-I) is a rare autosomal dominant hereditary disorder which seriously affects the root development of teeth, causing spontaneous tooth loss (in teenagers). At present, the study of DD-I focuses on familial and phenotypic analyses and reports regarding the ultrastructural study of DD-I are few. The purpose of this study was to clarify and discuss the clinical...

Purpose The American Academy of Pediatric Dentistry (AAPD) recognizes that pediatric dentists are uniquely qualified to manage the oral health care needs of children with heritable dental developmental anomalies. These children have multiple, complex problems as their dental conditions affect both form and function and can have significant psychological impact. These conditions may present earl...

Purpose The American Academy of Pediatric Dentistry (AAPD) recognizes that pediatric dentists are uniquely qualified to manage the oral health care needs of children with heritable dental developmental anomalies. These children have multiple, complex problems as their dental conditions affect both form and function and can have significant psychological impact. These conditions may present earl...

Segmental odontomaxillary dysplasia (SOD) is a rare developmental disorder of the maxilla, and there is little information on its morphological features. Thus, the present article describes a case of SOD focusing on its histopathological, immunohistochemical and scanning electron microscopic features. Several dental abnormalities were present, including numerous dentin and pulp defects, altered...

Dentin sialophosphoprotein (DSPP) mutations cause dentin dysplasia type II (DD-II) and dentinogenesis imperfecta types II and III (DGI-II and DGI-III, respectively). We identified two kindreds with DGI-II who exhibited vertical bands of hypoplastic enamel. Both families had a previously reported DSPP mutation that segregated with the disease phenotype. Oral photographs and dental radiographs of...

Dentinogenesis imperfecta (DI) type II or hereditary opalescent dentin is inherited in simple autosomal dominant mode with high penetrance and low mutation rate. It generally affects both the deciduous and permanent dentitions. DI type II corresponds to a localized form of mesodermal dysplasia, observed in histodifferentiation. Early diagnosis and treatment are therefore, fundamental, aiming at...

A healthy 13-year-old female was found to have no roots on the maxillary left second premolar and permanent first and second molars. Her history included chronic sinus infections treated with maxillary sinus curettage at approximately 4 years of age. The infection, or more likely the trauma associated with the surgery, may have caused agenesis of the roots. Other causes of rootless teeth such a...