Eruption Age And Sequence Of Permanent Teeth Among School Children In The Dravidian Population

Introduction: Significant knowledge on timing and pattern of permanent teeth eruption in a given population is essential for the diagnosis and treatment planning. Already established but changes to every population. The purpose of this study was to determine the eruption age and sequence of permanent teeth among school children in the Dravidian population. Material and Methods: This cross-sectional study was conducted among 1,650 Dravidian children (886 girls and 764 boys) ranging in age from 5 to 15 years. Descriptive statistics and paired t-test were used to compare the mean time of eruption of permanent teeth between gender and upper and lower jaws. Results: The permanent tooth started to erupt in 7.06 years of age and ended at 13.60 years of age in girls and in boys between the ages of 6.45 years and 13.40 years. In both the gender, the first tooth to erupt was the lower 1st molar, while the last was the upper 2nd molar. Statistically significant difference was noted between the eruption of permanent teeth in girls and boys except upper and lower canines and 2nd premolars. Conclusion: Boys showed earlier eruption of permanent teeth than girls. All the mandibular teeth erupted earlier than their maxillary counterpart, with the exception of right premolars in girls and left incisors in boys. A delay in eruption of lower canines was noticed in girls.