Longitudinal predictability of AF-BF value in Angle Class I patients.
AF-BF is a linear cephalometric measure of the anteroposterior jaw relationship in the sagittal plane. A retrospective, longitudinal study was made to determine the mean Caucasian American AF-BF values at ages 8 and 18 years for 30 male and 32 female participants of the Bolton Growth Study. Mean AF-BF values (+/- s.d.) for males were 7.3 +/- 2.7 mm at 8 years and 6.5 +/- 4.2 mm at 18 years. Mean AF-BF values (+/- s.d.) for females were 6.7 +/- 2.1 mm at 8 years and 5.2 +/- 2.9 mm at 18 years. No significant difference was found between the mean AF-BF values for males and females at either age group (P < 0.05). The decrease in AF-BF mean values with increasing age both for males and females was statistically significant. The correlation (r) for the AF-BF values was 0.49 (P < 0.05) for females and 0.86 (P < 0.05) for males. With increasing age, the mean difference between ANB values for females was 1.40 +/- 1.60 and 1.10 +/- 1.40 for males. The correlation of ANB angle and AF-BF provides a clinically useful tool for the cephalometric assessment of anteroposterior sagittal discrepancies of maxillary and mandibular denture bases.
Department of Diagnosis and General Dentistry University of Louisville School of Dentistry, Kentucky 40291, USA.
D L
DL
Judy
A G
AG
Farman
A M
AM
Silveira
J M
JM
Yancey
F J
FJ
Regennitter
W C
WC
Scarfe
D000293:Adolescent; D000367:Age Factors; D002508:Cephalometry; D002648:Child; D003724:Dental Arch / Q000254:growth & development / Q000473:pathology; D004424:Ear Canal / Q000254:growth & development / Q000473:pathology; D005260:Female; D005544:Forecasting; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008311:Malocclusion, Angle Class I / Q000473:pathology* / Q000503:physiopathology; D008334:Mandible / Q000254:growth & development / Q000473:pathology*; D008437:Maxilla / Q000254:growth & development / Q000473:pathology*; D009295:Nasal Bone / Q000254:growth & development / Q000473:pathology; D009915:Orbit / Q000254:growth & development / Q000473:pathology; D012189:Retrospective Studies; D012658:Sella Turcica / Q000254:growth & development / Q000473:pathology; D012737:Sex Factors; D012815:Signal Processing, Computer-Assisted; D044465:White People