Magdalena Ewa Sulewska

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2. Results and Discussion 2.1. Rheological Behavior and Mucoretention Characteristics The application of ALA-PDT as a therapeutic option for OLP has attracted great attention in recent years. Despite comprehensive data providing evidence of its efficacy toward oral premalignant diseases, including OLP, leukoplakia, or erythroplakia [,,], at present there is no commercially available ALA product for oral delivery.

3. Results Out of all 40 lesions, 30 were within the lining mucosa, of which 28 were buccal and 2 were sublingual. The other 10 lesions were on the masticatory mucosa—8 gingival and 2 lingual. The mean size of the lesions on the lining mucosa was greater than those in masticatory areas and, likewise, was greater in men than women (Table 1).