Prevalence of MIH in children aged 12 to 15 years in Beijing, China
- PDF / 298,172 Bytes
- 7 Pages / 595.276 x 790.866 pts Page_size
- 13 Downloads / 184 Views
ORIGINAL ARTICLE
Prevalence of MIH in children aged 12 to 15 years in Beijing, China Xuan Yi 1,2 & Wei Chen 1,2 & Min Liu 1,2 & Hui Zhang 1,2 & Wei Hou 1,2 & Yu Wang 1,2 Received: 20 August 2019 / Accepted: 20 August 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Objectives To investigate the prevalence of molar-incisor hypomineralization (MIH) in children aged 12 to 15 years in Beijing, China. Materials and methods A cross-sectional study was performed to recruit children aged 12 to 15 years old based on the method of multi-stage cluster random sampling during the Fourth National Oral Health Survey in Beijing, China, from September 2015 to March 2016. The first permanent molars (FPMs) and permanent incisors were examined for the presence of MIH by a singlecalibrated examiner according to the European Academy of Paediatric Dentistry (EAPD) criteria. Results Of the 6523 children recruited, 655 (10.0%) had MIH. The average number of affected MIH teeth in children was 2.68 ± 1.51. There was no gender-specific difference. With respect to the distribution of MIH in the mandible and maxilla, the most common condition was the simultaneous involvement of both the upper and lower FPMs. The severity of MIH was positively correlated with the number of affected teeth. The prevalence of MIH was lower in children who resided in the central districts and whose mothers had received higher education. Conclusion MIH was relatively prevalent among children aged 12 to 15 years old in Beijing, China. Clinical relevance This study is the first epidemiological survey on the prevalence of MIH in the pediatric population in North China. Some demographic and sociological factors were associated with the presence of MIH. Keywords Molar-insicor hypomineralization . Prevalence . Epidemiological survey . Demographic and sociological factors
Introduction Molar-incisor hypomineralization (MIH) is a systemic developmental qualitative defect of the enamel that affects 1–4 first permanent molars (FPMs) with or without incisor involvement [1]. The defects are clinically observed as white or yellow demarcated opacities that vary in size and severity, sometimes leading to post-eruptive enamel breakdown (PEB). PEB can occur immediately after an eruption or under masticatory forces, leading to unprotected dentine exposure and increase caries risk. MIH therefore should be distinguished from other enamel defects. After Weerrheijm et al. first coined the term MIH in 2001, the European Academy of Paediatric Dentistry (EAPD) recommended the MIH epidemiological diagnostic
* Wei Chen [email protected]
criteria in 2003 [2]. EAPD advocated a standardized epidemiological investigation method for MIH to facilitate a valid comparison between different studies. Recently, researchers in Germany reported that MIH happened frequently worldwide and its prevalence varied significantly in different regions and countries, with most cases observed in low- and middle-income countries [3]. In China, there were only two previous studies reported th
Data Loading...
