Correlation between the chronological and bone ages in orthodontics patients
Keywords:
chronologic age, bone age, TW2 method, biologic maturation.Abstract
To determine the bone age according to the sex and chronologic age and to identify the relation between the chronologic and bone ages in study patients. A cross-sectional and descriptive study was conducted in a universe including all children and adolescents needing orthodontics treatment admitted in the Orthodontics Clinic of the Stomatology Faculty of the Higher Institute of Medical Sciences (HIMS)-Habana from January, 2004 to December, 2006 aged between 8 and 16 selecting a sample including 150 patients by admission sampling, each patient undergoes a left hand radiography to determine the bone age by Tanner-Whitehouse 2 method (TW2) estimating the correlation between the bone age and chronologic one trough Pearson linear correlation coefficient. There were high and very significant correlations between the bone ages and the chronologic one in both sexes, female sex r= 0.977 and male sex r= 0.983 (p < 0.010). The bone age of patients estimated by TW2 method, not to coincided with the chronologic age and in both sexes there was a high positive correlation between above mentioned ages.Downloads
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