Abstract
Objective: To emphasize the diagnostic relevance in odontologic clinical practice aiming the correct therapeutic in the relief of symptomatology and eventual prevention of complications. Case study: Female patient, 41 years old, revealed oral dried mucosa, erythematous areas suggesting erythematous candidosis, besides tooth root remains to extract. To the clinical diagnostic hypoteses to explain the dried mucosa was Sjögren syndrome. A biopsy of labial minor salivary gland was made to explain the diagnosis. It was prescribed to the patient the use of artificial saliva to reduce and relieve xerostomia symptoms and after the dental extractions, the patient was referral to ophthalmologist and to a gynecologist. Final considerations: Early diagnosis made by a trained dentist reveals the importance to this profesional to make an early treatment and minimize the progress and symptoms of some diseases through remedy intervention and then prevent some opportunistics diseases as the Sjögren syndrome case report.