AGE ESTIMATION FROM MANDIBULAR SECOND MOLAR TOOH MINERALIZATION STAGES
DOI:
https://doi.org/10.33279/jkcd.v13i04.457Keywords:
Age estimation, Demirjian’s method, tooth mineralization stages, mandibular second molarAbstract
Objectives: The objective of this study was to estimate the age from mandibular second molar tooth mineralization stages and make a regression equation for our population.
Materials and Methods: This descriptive cross sectional study was conducted at Rehman college of dentistry on 150 samples from both genders, ages range 8-16 years, good quality panoramas (OPGs). OPG was used to determine the Demirjian’s stages of right mandibular second molar and age was asked from patients/parents. Correlation was determined between age and mineralization stages using Spearman rho test. Age estimation was done through linear regression by using age as dependent variable and tooth mineralization and gender as independent variables. The level of signifi cance was set at P≤0.05.
Results: The mean age of the study was 11.5±2.2 years. The males were 85(56.3%) and female were 65(43.7%). The correlation between age and tooth mineralization was highly statistically significant (r=0.725, P<0.001). In only 48.5% cases the model signifi cantly (P<0.001) estimated the age from Demirjian's stage. The regression equation between age as a dependent variable (Y) and independent variables tooth mineralization stages (X1) and gender (X2) was Y=7.73+1.198X1 -0.147X2 .
Conclusion: From our findings we can conclude that the correlation between age and tooth mineralization was highly statistically significant. The mandibular second molar can be used in age estimation but its predictive value is low (48.5%).
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Copyright (c) 2023 Tehmina Marwat, Sana Naeem, Arif Ullah Khan, Muhammad Sheraz Alam, Aasim Masood , Haseeb Ahmad

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