The term Riga-Fede disease has been used historically to describe a traumatic ulceration that occurs on the ventral surface of the tongue in neonates and infants. It is frequently associated with natal or neonatal teeth but may also occur in older infants after the eruption of primary lower incisors. Failure to diagnose and properly treat this lesion can result in dehydration and inadequate nut...

A 4.5 year-old girl presented with abdominal distention, failure to thrive, visual and hearing loss. In her medical history there was meningitis in the neonatal period, convulsions, enlargement of her head, nistagmus and exophtalmus at the tenth month. When she was 15 month-old, she had ventriculoperitoneal shunt and surgical transection of the filum terminale due to tethered cord. When she was...

ncontinentia pigmenti (IP) is a rare X-linked dominant neurocutaneous syndrome chiefly involving the ectodermal tissues, such as the skin, teeth, hair, eyes, and central nervous system (CNS).1 The diagnosis is usually made when the pathognomonic skin lesions are present; these typically appear in 4 stages: erythematous vesicular rash, verrucous patches, swirling hyperpigmentation, and atrophic ...

Studies addressing health effects of manganese (Mn) excess or deficiency during prenatal development are hampered by a lack of biomarkers that can reconstruct fetal exposure. We propose a method using the neonatal line, a histological feature in deciduous teeth, to identify regions of mantle dentine formed at different prenatal periods. Micromeasurements of Mn in these regions may be used to re...

T ooth eruption with little or no root development is rare and is usually associated with neonatal teeth or defects in root formation due to irradiation therapy of the head and neck. Possible causes of root absence are hereditary anomalies such as dentinal dysplasia, morphological anomalies known as dystrophies, and idiopathic root resorption. A tooth in a very early stage of root development c...

Preliminary results show microradiography and scanning electron microscopy (SEM) to be more accurate methods of accessing growth layer groups (GLGs) in the teeth of Tursiops fmncarus than transmitted light microscopy. Microradiography shoas the rhythmic deposition of mineral as alternating radiopaque and radiolucent layers. I t improves the resolution of CLGs near the pulp cavity in older indiv...

This study investigated possible prenatal and neonatal variables that may influence the prevalence of tooth enamel hypoplasia in preterm and low birth weight children (LBW) and a matched control group of term children with normal birth weight (NBW). The study sample consisted of 61 children born preterm and with LBW examined at 18-34 months of age. The control group was formed by 61 infants bor...

Supernumerary teeth are extra teeth. When they are present in the nasal cavity, they are called nasal tooth. Supernumerary teeth are reported from mandible, orbit, palate, maxillary antrum and nasal cavity. Eruption of teeth into these sites are rare and easily overlooked(l). Although, they are asymptomatic, they may prevent and delay the eruption of normal teeth and lead to the malalignment in...

background: improving the neonatal health and reducing the neonatal mortality rate is valuable for not only health reasons, but social, psychological and economic reasons. it has advantages not just for the neonatal period of life but for the whole life. unfortunately in iran, in spite of efforts, there has been little success in decreasing the neonatal mortality rate. since investigating the c...

background: neonatal cholestasis is an important infant’s diseases of liver and biliary, they are wide range of situation including; idiopathic neonatal hepatitis, extrahepatic biliary tract atresia, choledochal cysts and infectious diseases. lack of early diagnosis of the disease can be followed by irreparably complications. the aim of this study was determination the histopathological causes ...