An unusual hypoplastic premolar: a case report

This case report describes an unusual hypoplastic maxillary first premolar tooth that was diagnosed radiographically in a 10-year-old boy. The maxillary primary first molar had been extracted. When the tooth erupted the hypoplasia was seen to be confined to the mesial aspect of the tooth. The cause of this unusual distribution was considered to be either infection associated with the mesiobuccal root of the primary first molar or trauma during extraction of the primary tooth. The tooth was restored using dentine adhesive and posterior composite material.