Age estimation using Demirjian’s and Willems’ methods: preliminary study in the portuguese population

Introduction: Demirjian’s and Willems’ methods have been studied in different juvenile populations to assess their accuracy suitability for each population chronological age estimation. The Willems method seems be more suitable estimation when compared the Demirjian method, which, despite this, is still most widely used. However, date, there are no studies on Portuguese address this question. Objectives: Evaluate differences with dental determine which population. Material Methods: In 120 orthopantomograms of individuals, 64 females, 56 males, aged between 6 16 years, maturation stage first 7 teeth third quadrant was classified were applied. Results: both overestimated age, statistically significant estimated age. difference significant. underestimated without statistical significance. Conclusions: While males regarding choice an females use should preferred.