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Int J Paediatr Dent. 1999 Dec;9(4):277-84.

Eruption disturbances of maxillary permanent central incisors associated with anomalous adjacent permanent lateral incisors.

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Department of Pedodontics, School of Dentistry, Niigata University, Japan.


Several causes of eruption disturbances in upper permanent central incisors have been described. This report describes six cases in which the failure of maxillary permanent central incisors to erupt appears to be associated with developmental anomalies in the adjacent permanent lateral incisors. The root formation of the unerupted central incisors was delayed in comparison to the contralateral incisors as was the development of the adjacent lateral incisors. The shapes of the crowns were abnormal and in five cases out of the six described, the primary predecessors of the unerupted incisors were fused.

[Indexed for MEDLINE]

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