Comparison of Sino-Nasal Outcome Test 22 Symptom Scores in Rhinogenic and Odontogenic Sinusitis.

With controlling of covariates that may influence the severity of the disease, this study showed some significant differences in symptom patterns and HRQL impairment between patients with OMS and RS. Malodor is the most characteristic feature of OMS. Therefore, OMS should always be suspected in patients complaining of bad breath.