title: Clinical challenges Q&A. 1. Sore gums.
authors: Crispian
authors: C
authors: Scully
authors: Dimitrios
authors: D
authors: Malamos
mesh_terms: D003937:Diagnosis, Differential; D004892:Erythema Multiforme / Q000175:diagnosis; D005882:Gingival Diseases / Q000175:diagnosis*; D006801:Humans; D017676:Lichen Planus, Oral / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010390:Pemphigoid, Benign Mucous Membrane / Q000175:diagnosis*; D013283:Stomatitis, Herpetic / Q000175:diagnosis