Objectives

To (i) determine the prevalences of self‐report in a Swedish adult population, of temporomandibular disorders, burning mouth syndrome, dry mouth, and bad breath and (ii) determine oral health‐related quality‐of‐life impairment in subjects reporting these conditions.

Subjects and methods

A cross‐sectional, randomized sample of the adult Swedish population (response rate: 46%, N = 1309 subjects) self‐reported their condition from the preceding month to assess prevalences of self‐report for the studied conditions together with comorbidity group of subjects who reported more than one condition. The 49‐item Oral Health Impact Profile (OHIP) used to assess oral health‐related quality of life.

Results

The most prevalent condition was bad breath (39%), followed by dry mouth (22%), temporomandibular disorders (18%) and burning mouth syndrome (4%). High comorbidity of conditions occurred in 27% of the population. Quality‐of‐life impairment increased with the number of comorbid conditions. Among individual conditions, burning mouth syndrome and temporomandibular disorders (57% and 40% OHIP points) presented higher impairment than dry mouth and bad breath (32% and 26% OHIP points).

Conclusions

Orofacial conditions were common and often coexist. The comorbidity group experienced the highest impact on oral health‐related quality of life: the more the comorbid conditions, the greater the negative impact.