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KMID : 0361920170470040248
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Korean Journal of Orthodontics
2017 Volume.47 No. 4 p.248 ~ p.255
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Clustering of craniofacial patterns in Korean children with snoring
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Anderson Stephanie Maritza
Lim Hoi-Jeong
Kim Ki-Beom
Kim Sung-Wan
Kim Su-Jung
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Abstract
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Objective: The purpose of this study was to investigate whether the craniofacial patterns of Korean children with snoring and adenotonsillar hypertrophy (ATH) could be categorized into characteristic clusters according to age.
Methods: We enrolled 236 children with snoring and ATH (age range, 5?12 years) in this study. They were subdivided into four age groups: 5?6, 7?8, 9?10, and 11?12 years. Based on cephalometric analysis, the sagittal and vertical skeletal patterns of each individual were divided into Class I, II, and III, as well as the normodivergent, hypodivergent, and hyperdivergent patterns, respectively. Cluster analysis was performed using cephalometric principal components in addition to the age factor.
Results: Three heterogeneous clusters of craniofacial patterns were obtained in relation to age: cluster 1 (41.9%) included patients aged 5?8 years with a skeletal Class I or mild Class II and hyperdivergent pattern; cluster 2 (45.3%) included patients aged 9?12 years with a Class II and hyperdivergent pattern; and cluster 3 (12.8%) included patients aged 7?8 years with a Class III and hyperdivergent pattern.
Conclusions: This study found that the craniofacial patterns of Korean children with snoring and ATH could be categorized into three characteristic clusters according to age groups. Although no significantly dominant sagittal skeletal discrepancy was observed, hyperdivergent vertical discrepancy was consistently evident in all clusters.
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KEYWORD
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Adenotonsillar hypertrophy, Cluster analysis, Craniofacial pattern, Snoring
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