Which tests are performed in the evaluation of oral lichen planus (OLP)?

Updated: Sep 15, 2020
  • Author: Jaisri R Thoppay, DDS, MBA, MS; Chief Editor: Jeff Burgess, DDS, MSD  more...
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Skin patch testing may be helpful in identifying a contact allergy in some patients with oral lichen planus (OLP). [39] The current recommendation is to use a standard series; a dental prosthesis series; and a metal salt series that includes gold, mercury, and palladium salts as well as other salts of metals used in dental restorations. Late readings, or those obtained at 10 and 17 days after the application of the skin patch, may be required.

Although the assessment of hepatic function in the treatment of otherwise healthy southern European and Japanese patients with oral lichen planus may be warranted, similar screening in British and American patients appears to be of limited benefit. Formal studies are still ongoing. Consider hepatic biochemical testing only when patients have proven oral lichen planus and suspected liver disease. [49]

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