Abstract
Extraction therapy and orthodontic space closure represent a valid treatment approach for MIH-affected molars, given a certain severity of hypomineralization with poor long-term prognosis and favourable factors for orthodontic treatment success, which also offers certain advantages over prosthetic–restorative therapy. The decision to extract MIH-affected first molars, however, should not be made by the (paediatric) dentist, orthodontist or paediatrician alone, but always in conjunction after comprehensive interdisciplinary diagnosis and joint treatment planning, taking into account general, local and secondary factors. For the success of orthodontic extraction therapy in molar incisor hypomineralization, choosing the optimal time for molar extraction (between 8 and 11.5 years of age) is essential and depending on the jaw (upper or lower) and the presence or absence of additional dental crowding. An early referral of children affected by MIH to the orthodontist and an orthodontic examination in the early mixed dentition is recommended to allow for correct timing of orthodontic extraction therapy and space closure in patients, which would benefit from this treatment approach.
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Kirschneck, C., Proff, P. (2020). Extraction of MIH-Affected Molars and Orthodontic Space Closure. In: Bekes, K. (eds) Molar Incisor Hypomineralization. Springer, Cham. https://doi.org/10.1007/978-3-030-31601-3_15
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