Validity and accuracy of three radiographic dental age estimation methods in Brazilians

摘要: Abstract Objective To validate, analyse accuracy, and construct multiple regression formulae of three age estimation methods — Liliequist Lundberg, Haavikko, Mornstad using mineralization stages permanent teeth in Brazilians. Methods Panoramic radiographs 1009 Brazilian children adolescents (387 males 622 females) aged 8–15.99 years were analysed the aforementioned methodologies. Results The overall accuracy (absolute difference = AD dental age–chronological age = DA–CA) was as follows: AD = 0.97 DA–CA = −0.58; AD = 1.42 DA–CA = −1.35; Mornstad, AD = 2.48 DA–CA = 0.78. After sex-based stratification, values for AD = 0.91 DA–CA = −0.45; AD = 1.80 DA–CA = −1.75; AD = 2.74 DA–CA = 1.17. In females, DA = 1.01 DA–CA = −0.67; AD = 1.17 DA–CA = −1.09; AD = 2.31 DA–CA = 0.53. Lundberg technique predominated, followed by Haavikko when distinction present between sex age. Multiple constructed from data presented Conclusions validation methodologies population is possible. method most closely represented sample.