Cutaneous and Mucosal Lichen Planus: A Comprehensive Review of Clinical Subtypes, Risk Factors, Diagnosis, and Prognosis

Table 4

Possible contact allergens to induce lichenoid contact reactions.

Dental restoration/; crowning materials	Beryllium, cobalt, copper, chromium, gold, indium, mercury, nickel, palladium, silver, tin, zinc, composite resins, ceramics (porcelain), ethylene glycol dimethacrylate, titanium
Flavorings	Menthol oil, peppermint, cinnamon, spearmint, balsam of Peru, vanillin, jasmine absolute, lemon oil, eugenol

Modified from Schlosser [16].