The main goal of this study is to determine the correlation between hypodontia and the mineralization of teeth and to prove theimpact of hypodontia on delayed tooth development.For the realization of our objectives, clinical and X-ray analysis was performed on 64 subjects, of which 6 subjects were withcongenital absence of one or more teeth, and 58 subjects as a control group with complete dentition. Patients were aged (8-15)from both genders. The dental age (DA) and chronological age (CA) of the subjects were calculated by the Demirijan method.The mean difference between dental and chronological (DA – CA) age was analyzed by T-test and One Way ANOVA, and thecorrelation between (DA – CA) difference was analyzed by Spearman Correlation and Pearson Correlation. Tooth developmentin patients with hypodontia was delayed compared to patients without hypodontia. Male subjects with hypodontia had a greaterdelay in tooth development compared to female subjects, with an insignificant difference of p >0.05. The prevalence of delayedtooth development in patients with hypodontia increases in proportion to increasing chronological age. Patients with hypodontia have delayed development of permanent teeth, compared with subjects without hypodontia of the same age and the same gender.