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Prevalence of molar-incisor-hypomineralization among children attending pedodontic clinic of college of dentistry at Baghdad University

Authors: Ban Ali Salih بان علي صالح --- Muna S. Khalaf منى خلف
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2012 Volume: 24 Issue: 4 Pages: 121-125
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Molar Incisor Hypomineralization is a developmentally derived dental defect that involveshypomineralization of one to four permanent first molars frequently associated with similarly affected permanentincisors. The purpose of this study was to find the prevalence and severity of MIH among Iraqi children attending theteaching hospital of the College of Dentistry, Baghdad University.Materials and method: Two hundred and twenty seven children of ages ranging from 4-15 years participated andwere examined for enamel hypomineralization defects. Enamel Defect Index (EDI) as well as evaluation criteria forMIH diagnosis were used in order to detect the defects. When MIH was detected, further examinations were carriedout to evaluate the severity of the defect. Other types of hypoplasia such as localized or generalized hypoplasiawere also recorded and undergone the same examination.Results: It was found that of the two hundred and twenty seven children examined; one or more hypoplasias weredetected in 21 children (compromising 9.25% of the sample). Fifteen children of these 21 children had hypoplasia ofMIH type (6.61% of the total sample and 71.43% of the affected ones). Females were more affected with enameldefects than males although both showed similar susceptibility to have MIH type of defects. Most of the children whohad MIH were in the sixth year of age (n=6) and at this age the number of teeth affected was 36 (34.6%). The incisorswere found to be affected in a severe (29, 47.54%), mild (21, 34.43%) and the least moderate degrees (11, 18.03%)while the molars were more mildly affected (23, 48.94%).Conclusion: Molar incisor hypomineralization is prevalent in Iraqi children. It was not gender dependant and wasmostly detected in six year old children. The severity of the defects differed in different age groups and on differentteeth.


Article
Prevalence and severity of molar-incisor hypomineralisation with relation to its etiological factors among school children 7- 9 years of Al-Najaf governorate

Authors: Wala’a Amir Ofi --- Ban Ali Salih بان علي صالح
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2015 Volume: 27 Issue: 3 Pages: 169-173
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Molar Incisor hypomineralisation (MIH) is one of the biggest challenges with great clinical interest.Currently, the etiology of MIH remains unclear. There is no previous study concerning school children aged 7 – 9 yearsin Al-Najaf governorate in order to estimate the prevalence and severity of molar incisor hypomineralisation and thepossible associated risk factors. This study aimed to estimate the prevalence, severity and the possible associatedetiological factors of molar incisor hypomineralisation and also to study the correlation between body mass indexand molar incisor hypomineralisation.Material and Methods: Across sectional study conducted at Al-Najaf Governorate. A total of 600 children wereenrolled those who did not met the inclusion criteria were excluded. A structured self-administered validated Arabiclanguage questionnaire and an examination sheet were used for data collection. Body weight and height weremeasured and the body mass index was calculated. Dental material and supplies were used in examination. Thedemarcated hypomineralization was recorded according to the 10 point scoring system depended on the EAPDevaluation criteria The severity was assessed according to the clinical evaluation of the examiner and the presenceof opacities.Results: The response rate was 84.7% and the highest was in the 9-year-old children, the participants were 532children, the prevalence of hypomineralisation defect was 22.9%. The prevalence of demarcated hypomineralisationwas increased concomitantly with the age, and the 9-year-old children were the more affected. The overallprevalence of MIH among boys was lower than girls; (17.3%) and 22.6%, respectively. The severely affected teethwere 33/1464 teeth, represented 2.3%, severely affected molars were 25 (5.1%) and the severely affected incisorswere 8 (0.8%). More severely affected teeth were found in obese and overweight children were also increased withthe age of child.Conclusions: The prevalence of Molar Incisor Hypomineralisation in this study was 22.9%, MIH was more prevalentamong girls, the 9-year-old, normal body weight and urban residents children. The severely affected teethrepresented 4.5% of the total number of teeth, molars were more severely affected than incisors, obese andoverweight children and older children have more severe MIH. Further studies are suggested

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