Abstract
Among jaw cysts seen in children, the ratio of dentigerous cysts is high and they most commonly occur in the mandibular premolar area. We treated an 11-year-old boy with connected odontogenic cysts located in the left side mandibular premolar area, which caused abnormal localization of the tooth germs of the succedaneous teeth. Panorama X-rays findings showed that the mandibular left side canine and second premolar were impacted, and transmitted images around the tooth crowns. These transmitted images were connected around the root apex of the left side mandibular first deciduous molar, which had undergone root canal treatment. In addition, CT findings showed some non-transmitted images in the area of the cysts. We extirpated the cysts along with extraction of the first premolar under general anesthesia. During surgery we noted that the cysts ranged from the impacted mandibular canine on the left to the mesial root of the first molar and included the root apex of the half erupting first premolar. The first premolar was extracted in an attempt to save its successor. Following that treatment, the canine and second premolar erupted. Treatment of a cyst should be decided after considering various factors such as its shape and position in the jaw bone, and state of impacted teeth.
