Document Detail

Constancy of the angle between the Frankfort horizontal plane and the sella-nasion line.
MedLine Citation:
PMID:  24001109     Owner:  NLM     Status:  Publisher    
Objective: To investigate the constancy of the angle between the Frankfort horizontal plane (FH) and the sella-nasion line (SN) using longitudinal data. Materials and Methods: Longitudinal lateral cephalometric data of 223 children (116 girls and 107 boys) from 6 to 14 years of age were used. The angle between FH and SN (SNFH), the distance from FH to the nasion (NFH), the distance from FH to the sella (SFH), and the differences between the NFH and SFH (Δ) were also measured. All data were analyzed statistically using independent t-tests and mixed-effect regression model analysis. Results: The mean SNFH values showed some minor fluctuations, ranging from 9.26° to 9.74° in girls and 8.45° to 8.95° in boys. The mean NFH and SFH values gradually increased according to age irrespective of sex. There were statistically significant differences by sex for all measurements at several ages. The annual change in SFH and Δ showed sexual dimorphism. Conclusions: There are variations among individuals in the angle between the FH and SN. However, within an individual, the angle does not vary significantly over time during the observation period.
Young Jae Huh; Kyung-Hoe Huh; Hong-Kyun Kim; Shin-Eun Nam; Hye Yoon Song; Joo-Hoon Lee; Young-Seok Park
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-9-3
Journal Detail:
Title:  The Angle orthodontist     Volume:  -     ISSN:  1945-7103     ISO Abbreviation:  Angle Orthod     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-9-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370550     Medline TA:  Angle Orthod     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
a Graduate Student, School of Dentistry, Seoul National University, Seoul, Korea.
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