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J Korean Acad Pediatr Dent. 2005;32(4): 649-656.
STUDY ON LATERAL CEPHALOGRAM OF CHILDREN WITH NORMAL OCCLUSION IN THE PRIMARY DENTITION
김지연, 권장혁, 김경호, 박기태
성균관대학교 의과대학 삼성서울병원 치과진료부 소아치과
Corresponding Author: 박기태 ,
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ABSTRACT
The present study was designed to formulate cephalometric norms of normal occlusion for usage in orthodontic diagnosis of malocclusion in Korean children. Thirty two children, aged 4 to 6, with normal occlusion were chosen for this study, Sagittal and vertical relations were analyzed using lateral cephalogram and clinical photos and the measurements were compared with those of adults. On skeletal sagittal analysis, the mean values of the SNA and SNB angles were 83˚ and 78.72˚. It showed that the mandible was retrognathic and retropositioned in comparison to those of adults. On skeletal vertical analysis, the mean values of the genial angle was 127˚. This showed high angle pattern in children and reduction of genial angle due to counterclockwise rotation of the mandible is expected with growth. On soft tissue analysis, children showed convex pronto, obtuse nasolabial angle. On dental analysis, the mean values of the U1 to SN and IMPA were 91.04˚ and 86.57˚. This showed retroclined upper and lower deciduous teeth in comparison to adults. For skeletal values, the liner values were generally greater in males than females.
Keywords: Cephalometric analysis | Normal occlusion | Primary dentition | Skeletal analysis | Soft tissue analysis
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