Non-Cochrane · prognostic · PM41803535

Epidemiological trends in enamel hypomineralisation and molar-incisor hypomineralisation: a systematic review and meta-analysis.

Ammar Nour, Fresen Karl-Ferdinand, Schwendicke Falk, et al. · Clinical oral investigations · 2026 · PubMed · doi:10.1007/s00784-026-06801-2

Findings

Population Children and adolescents examined in cross-sectional studies of enamel hypomineralisation

14 findings

None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
Global
Prevalence 0.155 [0.144, 0.166]
GRADE not reported
139 studies · 199999 participants
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
Asia
Prevalence 0.137 [0.119, 0.155]
GRADE not reported
44 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
Oceania
Prevalence 0.174 [0.139, 0.208]
GRADE not reported
4 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
Africa
Prevalence 0.128 [0.079, 0.177]
GRADE not reported
7 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
North America: United States of America
Prevalence 0.109 [0.086, 0.132]
GRADE not reported
2 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
North America, original estimate before correction
Prevalence 0.239 [0.144, 0.334]
GRADE not reported
6 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
North America: Mexico
Prevalence 0.268 [0.161, 0.374]
GRADE not reported
5 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
Europe
Prevalence 0.154 [0.134, 0.174]
GRADE not reported
45 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
South America
Prevalence 0.171 [0.151, 0.192]
GRADE not reported
29 studies
None (prevalence)NonePrevalence of molar-incisor hypomineralisation (MIH)
North America
Prevalence 0.223 [0.140, 0.306]
GRADE not reported
7 studies
None (prevalence)NonePrevalence of enamel hypomineralisation (EH)
Global
Prevalence 0.253 [0.200, 0.306]
GRADE not reported
Studies not reported
None (prevalence)NonePrevalence of M + IH (as labeled in Table 1)
North America
Prevalence 0.051 [0.033, 0.078]
GRADE not reported
Studies not reported
None (prevalence)NonePrevalence of M + IH (as labeled in Table 1)
North America: United States of America
Prevalence 0.051 [0.033, 0.078]
GRADE not reported
2 studies
None (prevalence)NonePrevalence of M + IH (as labeled in Table 1)
Global
Prevalence 0.069 [0.060, 0.077]
GRADE not reported
Studies not reported

Included primary studies 2

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Tagelsir Ahmed 2020
Prevalence of molar-incisor hypomineralization and other enamel defects and associated sociodemographic determinants in Indiana
DOI:10.1016/j.adaj.2020.02.027
2020this review onlynot statednot extracted yet
Tagelsir Ahmed 2020
Prevalence of molar-incisor hypomineralization and other enamel defects and associated sociodemographic determinants in Indiana.
PMID:32593351
2020this review onlyPrevalence of molar-incisor hypomineralisation (MIH)not extracted yet

Review question

ElementPlanned (methods)Found (results)
PopulationNot specifiedChildren examined in epidemiological studies; 199,999 participants in 139 studies; added U.S. cohort of 337 children aged 6 to 15 years
InterventionNot specifiedNot applicable (prevalence)
ComparisonNot specifiedNot applicable (prevalence)
OutcomesPrevalence of molar-incisor hypomineralization and enamel hypomineralizationMIH, EH and M + IH prevalence
Study designsCross-sectional studiesCross-sectional studies (n=139)
TimingNot specifiedNot specified