American Journal of Orthodontics and Dentofacial Orthopedics
Original articlePhases of the dentition for the assessment of skeletal maturity: A diagnostic performance study
Section snippets
Material and methods
This large cross-sectional investigation included 1000 subjects (500 boys, 500 girls) from a parent sample of 1600 subjects from the departments of orthodontics of the universities of Florence and Rome “Tor Vergata.” The exclusion criteria consisted of full deciduous dentition, adult permanent dentition, craniofacial anomalies, cleft lip and palate, extensive caries, early loss of deciduous teeth due to trauma or caries, supernumerary teeth, tooth agenesis, and other tooth anomalies. Dental
Results
The prevalence of the CVM stages in the various phases of the dentition is given in Table I.
The diagnostic tests with the corresponding 95% confidence intervals are shown in Table II. The early mixed dentition phase showed high values in the diagnostic tests for the prepubertal CS1 in skeletal maturation (positive predictive value and positive likelihood ratio), whereas the intermediate mixed dentition phase had low diagnostic scores for that stage. This outcome indicates that a subject who
Discussion
Little is known about the relationship between the onset of puberty and dental maturation. Some studies showed that correlations between tooth mineralization and other parameters of physical development are generally low, whereas there is little more than slight covariation between tooth eruption and the adolescent growth spurt.23, 24, 25, 26, 27, 28, 29 Since no previous data are available with regard to the correspondence between dentition phases and skeletal maturation, we analyzed the
Conclusions
This study on the diagnostic performance of the phases of the dentition as indicators of individual skeletal maturity showed that the early mixed dentition phase shows strong diagnostic value for the identification of prepubertal skeletal maturity (CS1), whereas the intermediate mixed dentition phase has poor diagnostic value for that stage. Neither the late mixed dentition nor the early permanent dentition is a valid indicator for the onset of the pubertal growth spurt (CS3).
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