PREVALENCE OF MOLAR INSISORHYPOMINERALIZATION OF CHILDREN IN MALAPPURAM, KERALA, INDIA

Background:Molar incisor hypo mineralization is the hypomineralization of systemic origin of one to four permanent first molars, frequently associated with affected incisors. The prevalence rates vary from 2.4 to 40.2%. The aim of this study was to assess the prevalence and the possible etiological factors of Molar incisor hypo mineralization in 6 – 12 year old children of Malappuram district, kerala, India. Methods: A total of 2000 (808?males and 1092?females), 6-12 year-old children were examined who had their first permanent molar and incisors evaluated using the criteria for molar incisor hypomineralization described in the European meeting held in Athens in 2003.The potential aetiological factors were retrieved through detailed questionnaire supplemented with interviews and with medical histories provided by the schools. Statistical analysis was performed with a chi-Square test. Results: A total of 135 children were diagnosed Molar incisor hypomineralization with representing an overall prevalence of 6.75% Conclusion: Although the reason is not completely known, MIH is thought to occur as a result of the multifactorial reasons during the childs prenatal term or systemic diseases and malnutrition during the childs first 3 years of age.