View source for Dentin dysplasia

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'''Dentin dysplasia''' is a genetic disorder of [[teeth]], commonly exhibiting an [[autosomal dominant]] inheritance. It is characterized by presence of normal enamel but atypical dentin with abnormal pulpal morphology. There are two types.  Type I is the radicular type, and type II is the coronal type.  In the radicular type, the roots of teeth are shorter than normal and the [[pulp (tooth)|pulp]] chamber may be nearly gone.  The pulp chamber is sometimes described as having a "crescent shaped" appearance.  In the coronal type, the pulps are enlarged and are described as having a "thistle tube" appearance, in permanent dentition. In the deciduous dentition, coronal dentin dysplasia bears a resemblance to Dentinogenesis Imperfecta type II.

'''Radiographic Features'''

Type 1: Roots are short, blunt and conical. In deciduous teeth, pulp chambers and root canals are completely obliterated in permanent they may be cresent shaped.

Type 2: The pulp chamber of the deciduous teeth become obliterated in deciduous teeth. While in permanent teeth, large pulp chamber is seen in coronal portion of the tooth - referred to as thistle tube appearance.Pulp stones may be found.

'''Histologic Features'''

Type 1: Normal dentinal tubule formation is blockedand new dentin forms around obstacles...known as lava flowing around boulders.

==References==
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{{Oral pathology}}
[[Category: Oral pathology]]
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