title: [Ulcer caused by orthodontic instruments?].
authors.forename: D B
authors.initials: DB
authors.lastname: Tuinzing
mesh_terms: D003762:Dental Instruments / Q000009:adverse effects*; D006679:HIV Seropositivity / Q000150:complications; D006801:Humans; D019226:Oral Ulcer / Q000209:etiology*