Abstract
In the present report, three patient ranging from 6-7 years of age, with mandibular dentigerous cysts which may be caused by apical periodontitis of the deciduous molars are presented. A marsupialization was made concerning the dentigerous cysts and postoperative follow up observation was made. Guiding and inducing the eruption of the permanent premolars from the cystic cavity were accomplished with the aid of removable space maintainers and closure of the cyst was interfered in 2 cases out of three.
The results obtained from these operations and observations were as follows; the cyst sac disappeared 10-14 months after the operation, and the directions of the erupting premolars became normal in 2 cases, although buccal inclination was shown in one case. Brown or white capped crowns of the erupting teeth were observed, and these discolorations were considered to be caused by enamel hypoplasia due to periapical infections of preceding deciduous molars, or may be caused by plaque accumulation associated with the space maintainers. Curved root formations were also characteristic, and this may be considered presumably to be caused by increased internal cystic pressure.
