Background: Molar–incisor hypomineralisation (MIH) is a prevalent condition, and how it is managed varies greatly between professional groups. Aim: To explore, and compare, the UK and Australian general dental practitioners' management of MIH in children. Design: Face‐to‐face (remote) semistructured interviews were undertaken, using country‐specific topic guides. Participants were purposively sampled and recruited through national conferences and research networks (eviDent Foundation and Northern Dental Practice Based Research Network). Interviews (from each country) were audio‐recorded, transcribed verbatim and independently analysed using thematic analysis. Results: Two major themes arose from the UK interviews: (i) decision‐making complexities and understanding of treatment options and (ii) need for specialist input. The main Australian themes were (i) multidisciplinary approach to management supporting decision‐making complexities and (ii) economic implications for care. Several difficulties, such as financial implications, multidisciplinary care and clinical decision‐making, were identified as barriers to effectively managing MIH by GDPs in primary care. Conclusion: There are similarities and differences in the knowledge and management of MIH amongst UK and Australian nonspecialists. The different healthcare systems played a significant role in shaping how GDPs manage MIH with barriers relating to affordability, multidisciplinary care and clinical decision‐making. [ABSTRACT FROM AUTHOR]

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