ERUPTION CYSTS - RETROSPECTIVE CLINICAL-STUDY OF 36 CASES

The eruption cyst is a lesion associated with an erupting tooth. It ap pears as a transparent, bluish, blue or blue-black swelling of the alv eolar mucosa, over a temporal or permanent tooth in eruption. The anal ysis of the thirty-six eruption cysts cases studied, corresponding to twenty-seven patients, revealed that their most frequent location is i n the maxillary permanent dentition, and that they mostly occur in a s ingle presentation, and in an age-range of between five and nine years . Six cases out of the twenty-seven patients studied showed the charac teristic of presenting two or more eruption cysts, and in three of the se cases, the lesions were bilateral, symmetrical and simultaneous. Tw o other patients had been previously diagnosed with cyst diseases. Thi s would suggest that, in addition to the possible infection-trauma ori gin, there is in some cases the possibility of a predisponent tendency .