Objective <p>Recently, the systematic review and meta-analysis “Epidemiological Trends in Enamel Hypomineralisation and Molar-Incisor Hypomineralisation: A Systematic Review and Meta-Analysis” was published in Clinical Oral Investigations. In 2025 a reader brought the omission of an epidemiological study from North America to the attention of the author group.</p> Materials and methods <p>After checking the eligibility for inclusion we aimed at updating the meta-analysis. After inclusion of this overlooked study the systematic review and meta-analysis covers 139 studies and data from a total of 199,999 participants.</p> Results <p>For North America, the MIH prevalence estimate decreased slightly from 0.239 (95% CI: 0.144–0.334) to 0.223 (95% CI: 0.140–0.306). Notably, the global prevalence estimate for MIH remained unchanged at 0.155 (95% CI: 0.144–0.166).</p> Conclusion <p>The addition of the overlooked study influenced slightly the MIH outcome for North America but had no impact on the previously drawn conclusions.</p> Clinical relevance <p>Enamel hypomineralisation/ Molar incisor hypomineralisation is prevalent across the globe and needs attention by dental practitioners.</p>