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    Prevalence of hypodontia and other developmental dental anomalies in children with or without molar incisor hypomineralisation

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    1-s2.0-S0300571225000442-main.pdf (463.7Kb)
    Date
    2025-04-30
    Author
    Hani, Nazzal
    Rodd, Helen D.
    Alrashed, Hoor N.
    Bonifacio, Clarissa Calil
    Choe, Ruth Wei
    Crombie, Felicity
    El Shafei, Jumana
    El Shahawy, Osama
    Al Sheeb, Muneera
    Foláyan, Moréniké Oluwátóyìn
    Arowolo, Olaniyi
    Gambetta-Tessini, Karla
    de Vries, Aniek
    Goyal, Ashima
    Gupta, Arpit
    Hasmun, Noren
    Hussein, Iyad
    Issa, Ahmad I.
    Jundi, Suhad
    Abedalhaleem, Eman Bassam
    Kowash, Mawlood
    Alshamsi, Aysha
    Salami, Anas
    Manton, David J.
    Muñoz-Sandoval, Cecilia
    Narasimhan, Srinivasan
    Omar, Samah
    Parekh, Susan
    Drysdale, David
    Popoola, Bamidele O.
    Shields, Stephanie
    Silva, Mihiri J.
    Taylor, Greig
    Yang, Naomi Qiyue
    ...show more authors ...show less authors
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    Abstract
    ObjectivesTo investigate whether hypodontia and other developmental dental anomalies were more common in children with MIH than their unaffected peers, and to determine if sex or geographical location had any effect on hypodontia prevalence. MethodsThis analytical cross-sectional study was conducted in specialist paediatric dentistry clinics across 14 countries, categorised into six geographical regions. A total of 1279 children (aged 6 - 17 years) underwent a clinical examination and were allocated to the MIH (n = 649) or comparison group (n = 630). A validated MIH index was used to record the presence/extent of any hypomineralisation and a standardised approach was used to establish the clinical and/or radiographic presence of ten developmental dental anomalies. ResultsFour anomalies were significantly more prevalent in participants with MIH than those without this condition: hypodontia (p = 0.047), dens invaginatus (p = 0.004), dens evaginatus (p < 0.001) and microdont maxillary lateral incisors (p = 0.01). Additionally, the adjusted odds of hypodontia were 1.49 times higher in children with MIH compared to those without MIH. There was considerable disparity between geographic locations with the highest prevalence of hypodontia in participants from the Western Pacific region (11.21 %) and the lowest (2.92 %) in the Americas. No statistically significant association was found between sex (male vs. female) and hypodontia (p = 0.839). ConclusionsAccepting that the study group may not be representative of the wider population, the findings still have important clinical relevance. Furthermore, they lend support to the concept of shared genetic and epigenetic influence in the aetiology of MIH and other developmental dental disorders.
    URI
    https://www.sciencedirect.com/science/article/pii/S0300571225000442
    DOI/handle
    http://dx.doi.org/10.1016/j.jdent.2025.105598
    http://hdl.handle.net/10576/64013
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