Oral Thrush of Tongue with Erythematous 'Kissing Lesion' on the Palate Complicating Fixed Orthodontic Appliance Therapy.

Oral candidiasis is a well-recognized opportunistic fungal infection whereas orthodontic therapy is a well-established treatment with few risks. We report here an unusual case of oral thrush of tongue with erythematous palatal 'kissing lesion' in an otherwise healthy 16-year-old girl, complicated by her fixed orthodontic appliance and low salivary pH.