Articlediamond2006

Comparison of TW2 and TW3 skeletal age differences in a Brazilian population

Ana Isabel Ortega-Pertuz · Francisco Haiter Neto · Gláucia María Bovi Ambrosano · Frab Norberto Bóscolo · Solange María de Almeida · Marcia Spinelli Casanova

23 citations0/0 files storedJournal of Applied Oral Science

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Forensic Anthropology and Bioarchaeology Studies Dental Radiography and Imaging Child Abuse and Related Trauma

Abstract

OBJECTIVE: The aim of this study was to determine the differences between the skeletal ages estimated by TW2 and TW3 methods through their RUS and Carpal systems. MATERIAL AND METHODS: A sample of two hundred and forty hand and wrist radiographs of male and female Brazilian children aged 84-199 months was evaluated by five observers. The Dunnet test was performed for statistical analysis. RESULTS: Results showed higher skeletal ages estimated by TW2RUS than TW3RUS and Carpal for both genders. For girls a statistically significant difference (p<0.05) was observed between TW2RUS and TW3RUS over the entire age range. For boys this difference was observed from 108 months onwards. In general RUS skeletal ages were higher than the chronological age and Carpal skeletal ages for both genders. The overestimation of chronological age was smaller for TW3RUS than for TW2RUS, and this last system showed a statistically significant difference regarding chronological age over the entire age range for girls, whereas for boys this difference was seen from 132 months onwards. For girls TW3 RUS and Carpal showed a significant difference regarding chronological age in the oldest age groups; in boys TW3RUS did not show a significant difference regarding chronological age. For Carpal, these results were more variable. CONCLUSION: It seems reasonable to recommend the use of the TW3 system for the studied Brazilian population.

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References

1976Assessment of Skeletal Maturity and Prediction of Adult Height (TW2 Method)2002Assessment of skeletal maturity and prediction of adult height (TW3 method).2001Assessment of skeletal maturity and prediction of adult height:(TW3 Method)2008The Assessment of Skeletal Maturation 1923Differences in the time of development of centers of ossification in the male and female skeleton 1970EFFECT OF TRAINING ON REPLICABILITY OF ASSESSMENTS OF SKELETAL MATURITY (GREULICH-PYLE)1977Skeletal maturity of the hand and wrist in Japanese children by the TW2 method 2004TW3 bone age: RUS/CB and gender differences of percentiles for score and score increments

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