Buried or impacted teeth are a complex and challenging problem. An impacted tooth is one that is ‘prevented from erupting into its normal functional position by bone, tooth or fibrous tissue'. There are a number of treatments for buried teeth, but intervention may not be needed.
Any tooth—incisor, canine, premolar or molar—can be impacted. The most commonly impacted is the lower third molar, which is reported in about 16.7% of impaction cases (Dachi and Howell, 1961). The impaction of maxillary canines has an incidence of 2% (Ericson and Kurol, 1986).
The aetiology of impacted teeth can be divided into two main categories:
? General factors
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