Salivary changes and dental erosion in bulimia nervosa

Anja Weirsøe Dynesen, Allan Bardow, Birgit Petersson, Lene Rindal Nielsen, Birgitte Nauntofte

Research output: Contribution to journalJournal articleResearchpeer-review


OBJECTIVE: Our aim was to study if bulimia nervosa (BN) has an impact on salivary gland function and if such changes are related to dental erosion.

STUDY DESIGN: Twenty women with BN and twenty age- and gender-matched controls participated. Flow rate and composition of whole and glandular saliva, as well as feeling of oral dryness were measured. Dental erosion was measured on casts.

RESULTS: Compared with control subjects, unstimulated whole saliva (UWS) flow rate was reduced in persons with BN, primarily owing to intake of medication (P = .007). No major compositional salivary changes were found. In the BN group, the dental erosion score was highest and complaints of oral dryness were more frequent.

CONCLUSIONS: The BN persons had impaired UWS, mainly owing to medication; increased feeling of oral dryness; and more dental erosion. Dental erosion was related to the duration of eating disorder, whereas no effect of vomiting frequency or intake of acidic drinks on reduced UWS was observed.
Original languageEnglish
Article number18
JournalOral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Issue number5
Pages (from-to)696-707
Number of pages12
Publication statusPublished - 2008


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