Document Details
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Document Type |
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Thesis |
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Document Title |
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Molar Incisor Hypomineralization: Prevalence and Etiology قلة المعادن في تركيب الأسنان القـواطـع والســن الطــاحــــن الأول مـدى الانـتـشــار والعوامل المسببة |
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Subject |
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Preventive Dental Sciences Department |
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Document Language |
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Arabic |
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Abstract |
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Molar incisor hypomineralization (MIH), which refers to the clinical picture of hypomineralization of systemic origin affecting one or more first permanent molars (FPMs), frequently in association with affected incisors, is one of the major developmental defects of dental enamel. While this condition is of interest to clinical practitioners worldwide, there is little information regarding its prevalence and etiology, especially in the Middle East. Aim: To assess the prevalence and possible etiological factors of MIH in a group of children in Jeddah, Saudi Arabia. Methods: This cross-sectional study included all 8–12-year-old children who visited the Pediatric Dental Clinics, Faculty of Dentistry, King Abdulaziz University from February 1, 2011 to July 31, 2011 and met our inclusion criteria. A single investigator first interviewed each child’s mother and helped her complete a questionnaire (face-to-face interview) and then clinically examined the child. The criteria used for the diagnosis of MIH were those developed by Weerheijm et al. and described at the European meeting held in Athens in 2003. The results were recorded and analyzed for statistical significance using the Chi-square test and t-test with a P value of <0.05 considered significant. Results: A total of 267 children (134 males and 133 females) were examined for MIH. The prevalence of MIH was 8.6%, and MIH was not significantly associated with any demographic variable. Most of the affected children (65.2%) had defects in both the FPMs and the incisors, with only 8 (34.8%) children having defects confined to the FPMs. The majority of the defects observed were demarcated opacities. In the affected children, the prevalence of MIH did not differ significantly among the 12 index teeth between the arches except in the central incisors, for which the prevalence was higher in the maxillary arch. However, 82.6% of children with MIH and 18.4% of those without had a history of health problems in their first 4 years of life (P < 0.001). MIH was therefore significantly associated with such childhood health problems as asthma, adenoid infection, tonsillitis, fever, and antibiotic intake but not with premature birth, birth complications, low birth weight, or breastfeeding duration. Conclusion: MIH was present in 8.6% of the study population and was significantly associated with health problems in the first 4 years of life. Recommendations: Additional studies using the same criteria should be conducted in Saudi Arabia in order to further evaluate the prevalence and etiology of this clinically important condition and compared the results with our baseline findings. |
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Supervisor |
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DR.SAMAR MADANI ALAKI |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1433 AH
2012 AD |
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Co-Supervisor |
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Dr. omar abd el sadek el meligy |
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Added Date |
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Wednesday, September 19, 2012 |
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Researchers
| سليمان محمد اللزام | Allazzam, Sulaiman m | Researcher | Master | |
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