Contact Stomatitis to Toothpaste: Importance of Differential Diagnosis

Abstract

Oral contact reactions are common in oral medicine daily practice, and the differential diagnosis can be challenging. Here, we report 2 cases of contact stomatitis. A 48-year-old female presented for consultation with several painful whitish, small plaques on the floor of the mouth that started just after initiating the use of a new toothpaste (Oral B ProSaúde®). Due to the association of the symptoms, use of the toothpaste was interrupted and the lesions disappeared in 5 days. In the second case, a 67-year-old female was referred for evaluation of reddish plaques on the anterior ventral and right lateral border of the tongue and lower labial mucosa. The lesions started after beginning the use of a new toothpaste (Oral B ProSaúde®). Discontinuation of its use resulted in complete remission of the lesions within 7 days. Clinicians should be aware of oral local contact stomatitis, and it is essential to consider toothpastes and other oral hygiene products as possible triggers.