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Journal of Indian Society of Pedodontics and Preventive Dentistry Official publication of Indian Society of Pedodontics and Preventive Dentistry
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 ORIGINAL ARTICLE
Year : 2016  |  Volume : 34  |  Issue : 2  |  Page : 134-138

Prevalence of molar incisor hypomineralization in school children aged 8-12 years in Chennai


1 Department of Pediatric and Preventive Dentistry, GSL Dental College and Hospital, Rajamundry, Andhra Pradesh, India
2 Department of Pediatric and Preventive Dentistry, Sri Sai Dental College, Vikarabad, Telangana, India
3 Department of Pediatric Dentistry, Meenakshi Ammal Dental College, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. Savitha Deepthi Yannam
Department of Pedodontics and Preventive Dentistry, GSL Dental College and Hospital, Rajamundry - 533 296, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-4388.180438

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Objective: To investigate the prevalence and severity of molar incisor hypomineralization (MIH). Materials and Methods: A sample of 2,864 students aged 8-12 years were selected from government and private schools in Chennai. MIH was diagnosed clinically based on the diagnostic criteria established by the European Academy of Pediatric Dentistry (EAPD) 2003. Results: A total of 277 children (9.7%) had MIH. There was statistically significant difference in prevalence related to age but there was no statistical difference in prevalence with respect to gender. Conclusion: Prevalence of MIH was 9.7% in the child population residing in Chennai. Males and females were equally affected. The rate of occurrence and severity of MIH are more in the right mandibular first molar. The severity of MIH is more in molars compared to incisors (P < 0.001) and is more in government schools compared to private schools (P = 0.002).






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