Simultaneous Intraoral and Extraoral Sinus Tracts Associated with a Mandibular Second Molar: A Case Report
Abstract
Aim: The aim of this case report is to present the diagnostic process, nonsurgical endodontic treatment, and 12-month clinical and radiographic follow-up findings of a mandibular right second molar associated with simultaneous intraoral and extraoral sinus tracts. Case Report: A 21-year-old female patient with no known chronic systemic disease was referred to the endodontics clinic for evaluation of a possible odontogenic source of infection after being hospitalized for septic shock. Based on a detailed medical and dental history, clinical examination, pulp sensibility tests, periapical and panoramic radiographs, and cone-beam computed tomography findings, the pulpal diagnosis for tooth #47 was established as pulp necrosis, while the apical diagnosis was chronic apical abscess, accompanied by intraoral and extraoral sinus tract formation. Following chemomechanical preparation and intracanal medication with calcium hydroxide–chlorhexidine, root canal treatment was completed using gutta-percha and a resin-based root canal sealer. Clinical and radiographic follow-up examinations revealed marked healing of the intraoral and extraoral sinus tracts, a reduction in the size of the periapical lesion, and osseous healing. Conclusion: This case highlights the importance of considering a possible odontogenic source in the differential diagnosis of persistent cutaneous sinus tracts in the head and neck region and documents a favorable clinical and radiographic outcome following nonsurgical endodontic treatment.
Keywords
- Chronic Apical Abscess
- Endodontic Treatment
- Extraoral Sinus Tract
- Intraoral Sinus Tract
- Septic Shock
Supporting Institution
Project Number
Ethical Statement
Thanks
References
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Details
Primary Language
English
Subjects
Endodontics
Journal Section
Case Report
Publication Date
August 19, 2026
Submission Date
July 22, 2026
Acceptance Date
August 10, 2026
Published in Issue
Year 2026 Volume: 4 Number: 2