DIFFERENCE IN THE PATTERN OF ECTOPIC ERUPTION BETWEEN MAXILLA AND MANDIBLE : REPORT OF CASE

위치부정맹출(位置不正萌出)에 관(關)한 상하악골(上下顎骨)의 비교관찰(比較觀察) 증례(症例)

The author observed a case of ectopic erupted maxillary second premolars and impacted mandibular second premolars due to premature loss of the primary second molars. The treatments were done as follows: 1. In the maxilla, the teeth arrangement problem was corrected with removal of the ectopic erupted second premolars. 2. In the mandible, normal dentition was established with surgical removal of the left second premolar and removal of the permanent first molar in right side combined by orthodontic therapy.