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Incidence of squamous cell carcinoma in oral lichen planus: a 25‐year population‐based study

Oral lichen planus (OLP) is a chronic inflammatory condition of the oral mucosa. Multiple studies have shown that approximately 1% of patients with OLP will develop oral squamous cell carcinoma (OSCC), however, no study has taken a population‐based multicenter approach to demonstrate this association. Our main objective was to determine the incidence of OSCC in OLP in a specific population and secondarily to assist physicians regarding appropriate long‐term monitoring of patients with OLP.