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Structural, Mechanical, and Chemical Evaluation of Molar Incisor Hypomineralization-Affected Enamel

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Molar Incisor Hypomineralization

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Abstract

In order to not only understand the pathogenesis of MIH but also derive appropriate treatment strategies, knowledge of the structural, mechanical, and chemical properties and changes of MIH-affected enamel compared to normal enamel is required. The present chapter summarizes the findings of studies on changes in MIH versus sound enamel. A number of studies reported on structural, mechanical, and chemical properties of MIH-affected enamel; however, the results of these studies are not always consistent because of the wide range of different analytical methods used. Future studies should hence aim for the use of standardized methods, if possible in combination with each other, and linking the histological, mechanical, and chemical properties with clinical parameters (severity, symptoms). Common structural findings pertain to (1) an increased protein content and enamel porosity, (2) decreased mineral density, and (3) inferior mechanical properties of the affected enamel. While it is not fully clear how these findings can be linked into clinical practice, future strategic avenues may involve an extension of the cavity preparation into seemingly healthy enamel to allow bonding to truly unaffected enamel, the use of flexure-resistant materials to overcome the mechanical limitations of the underlying MIH-affected enamel, and the use of modified conditioning techniques, tailored for MIH-affected enamel to optimize the prognosis of restorations in MIH teeth.

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Author information

Authors and Affiliations

  1. Department for Operative and Preventive Dentistry, Charité Centre for Dental Medicine, Charité—Universitätsmedizin Berlin, Berlin, Germany

    Karim Elhennawy

  2. Department of Orthodontics, Dentofacial Orthopedics and Pedodontics, CC03, Center for Dental and Craniofacial Sciences, Charité—Universitätsmedizin Berlin, Berlin, Germany

    Karim Elhennawy

  3. Department of Paediatric Dentistry, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria

    Katrin Bekes

  4. Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria

    Anton Dobsak & Stefan Tangl

  5. Core Facility for Applied Physics, Laser and CAD/CAM, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria

    Hassan Shokoohi-Tabrizi

  6. Department for Operative and Preventive Dentistry, CC03, Center for Dental and Craniofacial Sciences, Charité—Universitätsmedizin Berlin, Berlin, Germany

    Falk Schwendicke

Authors
  1. Karim Elhennawy
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  2. Katrin Bekes
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  3. Anton Dobsak
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  4. Stefan Tangl
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  5. Hassan Shokoohi-Tabrizi
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  6. Falk Schwendicke
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Corresponding author

Correspondence to Karim Elhennawy .

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Editors and Affiliations

  1. Department of Paediatric Dentistry, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria

    Katrin Bekes

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Elhennawy, K., Bekes, K., Dobsak, A., Tangl, S., Shokoohi-Tabrizi, H., Schwendicke, F. (2020). Structural, Mechanical, and Chemical Evaluation of Molar Incisor Hypomineralization-Affected Enamel. In: Bekes, K. (eds) Molar Incisor Hypomineralization. Springer, Cham. https://doi.org/10.1007/978-3-030-31601-3_2

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  • DOI: https://doi.org/10.1007/978-3-030-31601-3_2

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-31600-6

  • Online ISBN: 978-3-030-31601-3

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