エナメル質形成不全を伴った遺伝性乳白色象牙質の一症例

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  • Hereditary Opalescent Dentin Associated with Enamel Defects: a case report

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Hereditary opalescent dentin is a localized dysplasia affecting the dentin, and also called Dentinogenesis imperfecta.<BR>The patient (a three-year three-months-oldboy) diagnosed as having Hereditary opalescent dentin with no Osteogenesis imperfecta, visited the Pedodontics Clinic of Osaka University Dental School.<BR>The findings were as follows:<BR>1) Erupted teeth ?? ?? ?? showed a peculiar opalescent color and severe attrition.<BR>2) Typical reduction in the size of pulp cavities was observed on the deciduous molars.<BR>3) Histrogical observations showed cementum of normal structure, but enamel prisms and dentinal tubules were greatly reduced in number, and they appeared to be irregular.<BR>4) This trait was observed to be autosomal dominant with high penetrance. In order to regain the vertical dimension, an over-denture was placed on the teeth, after stainless steel crowns were placed on the deciduous molars.

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