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Prevalence and characteristics of MIH in school children residing in an endemic fluorosis area of India: an epidemiological study

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Abstract

Aim

This was to study the prevalence of molar incisor hypomineralisation (MIH) among school children residing in a fluorosis endemic area in Tamilnadu (Salem, India).

Methods

A target sample of 5000 children of age ranging between 9 and 14 years, comprising 250 children from each of 20 blocks of Salem, participated in this study. The examination was completed in their respective schools by a calibrated examiner using EAPD criteria.

Results

Of 4989 children examined, 384 children had MIH. A prevalence of 7.3 %. The MIH found in girls was 8.9 % compared with 6.1 % in boys. Single-tooth involvement of MIH was seen predominantly in incisors (2.24 %), whereas with molars usually three teeth were involved (1.1 %). MIH with caries involvement was found in 51 % of the teeth.

Conclusion

The prevalence of MIH in the endemic fluorosis district was found to be 7.3 %. A gradual increase in MIH was seen with age due to post enamel breakdown. Caries involvement was also seen in more than 50 % of the MIH-involved teeth. This prevalence study for molar incisor hypomineralisation (MIH) is rare in the literature, especially in a fluorosis endemic district in Tamilnadu.

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Acknowledgements

We would like to extend our gratitude to the CEO of Salem and the junior doctors who helped us with this study.

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Authors and Affiliations

  1. Department of Pedodontics & Preventive dentistry, Vinayaka Missons Sankarachariyar Dental College, Salem, 636308, Tamilnadu, India

    R. Krishnan

  2. Department of Oral pathology, Vinayaka Missons Sankarachariyar Dental College, Salem, Tamilnadu, India

    M. Ramesh

  3. Department of Pedodontics & Preventive Dentistry, Goa Dental College and Hospital, Bambolim, 403202, Goa, India

    P. Chalakkal

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  1. R. Krishnan
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  2. M. Ramesh
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  3. P. Chalakkal
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Correspondence to R. Krishnan.

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Krishnan, R., Ramesh, M. & Chalakkal, P. Prevalence and characteristics of MIH in school children residing in an endemic fluorosis area of India: an epidemiological study. Eur Arch Paediatr Dent 16, 455–460 (2015). https://doi.org/10.1007/s40368-015-0194-8

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  • DOI: https://doi.org/10.1007/s40368-015-0194-8

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