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Year : 2016  |  Volume : 14  |  Issue : 3  |  Page : 276-280

Comparison of chronology of teeth eruption with body mass index among school children at Mangalore: A cross-sectional study

1 Department of Public Health Dentistry, AMEs Dental College and Hospital, Raichur, Karnataka, India
2 Department of Pedodontics and Preventive Dentistry, AMEs Dental College and Hospital, Raichur, Karnataka, India
3 Department of Oral Medicine and Radiology, RKDF Dental College and Hospital, Bhopal, Madhya Pradesh, India
4 Department of Public Health Dentistry, Amritha School of Dentistry, Ernakulum, Kerala, India
5 Department of Public Health Dentistry, Yenopoya Dental College, Mangalore, Karnataka, India
6 Department of Conservative and Endodontics, AMEs Dental College and Hospital, Raichur, Karnataka, India

Correspondence Address:
Hemanth Kumar
Department of Pedodontics and Preventive Dentistry, AMEs Dental College and Hospital, Raichur, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2319-5932.189835

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Introduction: The development and eruption of the teeth, chronologies of human dentitions, dental age, and tooth formation standards are important aspects applied to dental practice. Body mass index (BMI) gives an indication about the nutritional status of the child. It is relevant to know whether BMI has influenced chronology of tooth eruption pattern. Aim: To determine the eruption age of the different permanent teeth and compare eruption age with BMI in a group of children from selected schools in Mangalore. Materials and Methods: A cross-sectional study was designed in which 2928 children ranging in age from 5.5 to 15 years were included in the study. The children were divided into 20 chronological age groups with half year intervals. All the children were examined by a single examiner with the help of a trained assistant. The teeth were examined under natural light with mouth mirror. The comparison was made between mean eruption ages in males and females using the independent t-test. Results: There were 1526 males constituting 52.1% and 1402 females constituting 47.9% of the total sample of 2928 children. The mean age of eruption of maxillary central incisor, maxillary lateral incisor, maxillary and mandibular canines, maxillary and mandibular premolars, maxillary and mandibular second molars were found to have statistical significant with BMI. The mean age of eruption of the teeth in females was found to be earlier than in males, with the exception of the maxillary first molar which is earlier in males. Conclusion: Different categories of BMI were underweight, normal weight, risk of overweight and overweight, wherein overweight children had early eruption of teeth. Girls had early eruption time compared to boys.

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