title: Molar Incisor Hypomineralization: An Epidemiological Study with Prevalence and Etiological Factors in Indian Pediatric Population.
abstract: OBJECTIVE
  To determine the prevalence of molar incisor hypomineralization (MIH) in Indian children and to analyze the possible etiological factors.
  
  
  METHODS
  First permanent molars and all permanent incisors were examined in 1,369 children aged 8 to 12 years. Examinations were performed by two calibrated observers. The subjects were evaluated using judgment criteria proposed by Weerheijm et al in 2003. The parents accompanying children were given a questionnaire regarding pre- and postnatal history of the children.
  
  
  RESULTS
  A total of 191 children were diagnosed with MIH with a prevalence of 13.9%. Chi-square/Fisher exact test was used to compare the dichotomous variables. The relative risk with its 95% confidence interval was calculated to find the risk of clinical infections, such as chicken pox, jaundice, renal disorders, cardiac disorders, and affected molars with sex and type of delivery. Pre- and postnatal history of infection in a child was significantly correlated with the prevalence of MIH.
  
  
  CONCLUSIONS
  The prevalence of MIH was 13.9% in the age group of 8 to 12 years. Prenatal and postnatal infections play an important role in hypomineralization of molars and incisors. How to cite this article: Mishra A, Pandey RK. Molar Incisor Hypomineralization: An Epidemiological Study with Prevalence and Etiological Factors in Indian Pediatric Population. Int J Clin Pediatr Dent 2016;9(2):167-171.
authors.affiliation: Junior Resident, Department of Pediatric and Preventive Dentistry, King George Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Apurva
authors.initials: A
authors.lastname: Mishra
authors.affiliation: Head, Department of Pediatric and Preventive Dentistry, King George Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Ramesh K
authors.initials: RK
authors.lastname: Pandey
keywords: Enamel opacities; Molar incisal hypomineraliza-tion; Posteruptive breakdown; Prenatal and postnatal infections.