| RELATIONSHIPS BETWEEN CRANIAL BASE AND FACIAL STRUCTURES IN CHILDREN WITH CLASS I AND III MALOCCLUSIONS AGED FROM 7 TO 12 YEARS : A CEPHALOMETRIC STUDY |
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| I급과 III급 부정교합을 보이는 어린이의 두개저의 성장변화에 관한 연구 |
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이미숙, 최영철 |
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경희대학교 치과대학 소아치과학교실 |
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| Abstract |
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The present study was designed to compare morphological and structural relationships between basicranial measurements such as MCF angulation (Ar-SE-ptm), saddle angle (N-S-Ba, N-S-Ar) and facial structures including types of malocclusion. Twenty six children with Class III whose longitudinal headfilms were available from 7 to 12-year-old, and also 26 cross-sectional headfilms at each ages of 8, 9, 10 and 11 with Class I were selected for the investigation. Cephalometric measurements such as Ar-SE-ptm, N-S-Ba, N-S-Ar, N-SE-Ar, SNA, SNB, N-S/PM vert, CP/PM vert, 1/FH plane, and N-perp/1 were measured. Morphologic relationships and pattern of changes in facial structures in relation to the changes of MCF and saddle angle in both malocclusion types were analysed statistically employing ANOVA, t-test and Pearson correlation. Results suggest that the MCF rather than the saddle angle in children with Class I and III is more closely related with various facial structures and with their changes. It may be, therefore, suggested that the MCF be one of the biologically meaningful measurements in determining structural relationships between cranial base and facial complex including types of malocclusion. In addition, the MCF and its correlated facial structures in children with Class III, interestingly, showed somewhat marked changes between the ages of 9 and 11. |
| Key Words:
Middle cranial fossa angulation, Saddle angle, Class I malocclusion, Class III malocclusion |
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