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Frictional Keratosis

  • Living reference work entry
  • First Online:
Encyclopedia of Pathology

Part of the book series: Encyclopedia of Pathology ((EP))

Synonyms

Focal hyperkeratosis

Definition

Frictional keratosis is a white, keratotic lesion due to chronic mechanical irritation caused by sharp edges of teeth or restorations, dental prosthesis, abrasive foods, vigorous tooth brushing, and playing wind instruments. Alveolar ridge keratosis is a frictional keratosis located on the edentulous alveolar ridge and/or retromolar pad. Morsicatio mucosae oris is a form of chronic oral frictional keratosis of the nonkeratinized oral mucosa, usually located on the buccal mucosa or lips.

Frictional keratosis presents as diffuse, white plaques, pale-translucent to dense, white, and irregular.

Clinical Features

Incidence

Frictional keratosis is a common oral lesion due to trauma.

Age

No age predilection.

Sex

No sex predilection.

Site

Frictional keratosis occurs in areas that are commonly traumatized, such as the buccal mucosa (along the occlusal line), lips, lateral margins of the tongue, and edentulous alveolar ridges.

Treatment

The lesion...

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References and Further Reading

  • Chi, A. C., Lambert, P. R., Pan, Y., Li, R., Vo, D. T., Edwards, E., Gangarosa, P., & Neville, B. W. (2007). Is alveolar ridge keratosis a true leukoplakia? A clinicopathologic comparison of 2,153 lesions. Journal of the American Dental Association, 138, 641–651.

    Article  PubMed  Google Scholar 

  • Woo, S. B., & Lin, D. (2009). Morsicatio mucosae oris: A chronic oral frictional keratosis, not a leukoplakia. Journal of Oral and Maxillofacial Surgery, 67, 140–146.

    Article  PubMed  Google Scholar 

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Author information

Authors and Affiliations

  1. Department of Pathology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands

    Jacqueline E. van der Wal

Authors
  1. Jacqueline E. van der Wal
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Corresponding author

Correspondence to Jacqueline E. van der Wal .

Editor information

Editors and Affiliations

  1. NIJMEGEN, The Netherlands

    J.H.J.M. van Krieken

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© 2017 Springer International Publishing AG

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Cite this entry

van der Wal, J.E. (2017). Frictional Keratosis. In: van Krieken, J. (eds) Encyclopedia of Pathology. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-319-28845-1_708-1

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  • DOI: https://doi.org/10.1007/978-3-319-28845-1_708-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-28845-1

  • Online ISBN: 978-3-319-28845-1

  • eBook Packages: Springer Reference MedicineReference Module Medicine

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