Back ABCDEFGHIKMNOPRSTUV A Acute necrotizing ulcerative gingivitis ANUG Aphthous stomatitis Aphthous ulcers B C Canker sore Cracked tooth D Dental impaction E F Fractured tooth G H I Impacted tooth K M N O Oral-facial cleft P Peritonsillar abscess R S T Teething Tongue cancer Tooth abscess Tooth decay Thrush Tooth fracture Trench mouth U Unemerged tooth V Vincent's stomatitis