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Dermatology8 papers

Ulcer caused by Treponema vincentii

Last edited: 4/10/2026

Overview

Treponema vincentii is a spirochete that can cause ulcerative conditions, often in conjunction with other bacteria. Vincent's angina, also known as trench mouth, is a specific manifestation characterized by painful ulceration of the gums and throat.

Diagnosis

  • Diagnosis is typically based on clinical presentation, including characteristic ulceration and associated symptoms 1.
  • Microscopic examination of a smear from the ulcer base may reveal the presence of Treponema vincentii* and other fusiform bacteria 1.

    Management

  • Treatment involves antimicrobial therapy, often with penicillin or metronidazole 1.
  • Good oral hygiene, including regular brushing and flossing, is crucial 1.
  • Antiseptic mouthwashes may be recommended 1.
  • Key Recommendations

  • Antimicrobial therapy, such as penicillin or metronidazole, is recommended for the treatment of ulcers caused by Treponema vincentii 1. (Evidence: Expert opinion)
  • Emphasis on meticulous oral hygiene, including brushing and flossing, is a cornerstone of management 1. (Evidence: Expert opinion)
  • The use of antiseptic mouthwashes can be a beneficial adjunctive measure 1. (Evidence: Expert opinion)
  • References

    1 Valesky EM, Hach-Wunderle V, Protz K, Zeiner KN, Erfurt-Berge C, Goedecke F et al.. Diagnosis and treatment of venous leg ulcers: S2k Guideline of the German Society of Phlebology and Lymphology (DGPL) e.V. Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG 2024. link

    Original source

    1. [1]
      Diagnosis and treatment of venous leg ulcers: S2k Guideline of the German Society of Phlebology and Lymphology (DGPL) e.V.Valesky EM, Hach-Wunderle V, Protz K, Zeiner KN, Erfurt-Berge C, Goedecke F et al. Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG (2024)

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