MIH
Pronunciation: em-eye-aitch
Also written as: MIH — Molar Incisor Hypomineralisation
Acronym for Molar Incisor Hypomineralisation, a developmental enamel defect affecting one or more first permanent molars, often with concurrent involvement of permanent incisors.
Full Definition
MIH (Molar Incisor Hypomineralisation) is a systemic enamel defect of unknown aetiology, diagnosed by the presence of demarcated opacities on one or more first permanent molars, with or without affected permanent incisors. It is associated with post-eruptive enamel breakdown, hypersensitivity, and high caries susceptibility. In dental research literature the acronym MIH is now widely recognised, but editors should ensure it is spelled out at first use in accordance with journal policy. The European Academy of Paediatric Dentistry (EAPD) provides diagnostic criteria that are the reference standard in most published research. Editors should also be aware of the extended classification 'HSPM' (Hypomineralised Second Primary Molars) when manuscripts address primary dentition.
Usage
Usage note: Spell out in full at first use in abstract and main text separately. Do not confuse with 'HSPM,' which refers to hypomineralisation of the second primary molars, a related but distinct condition.
In Context
- "The prevalence of MIH in the study cohort was 14.6%, based on EAPD diagnostic criteria applied at clinical examination." — Paediatric dental epidemiology paper
- "Ensure MIH is defined as 'Molar Incisor Hypomineralisation' at its first occurrence in both the abstract and the introduction." — Copy-editor's checklist note