Hospitalisation associated with a deterioration in oral health.

DATA SOURCES: Ovid MEDLINE and Ovid OLDMEDLINE (January 1950 to January 2010), CINAHL (1982 to January 2010), Cochrane Library (up to 2010) and EMBASE (1981 to January 2010), bibliographies of potentially relevant reports and reviews, handsearching of Community Dentistry and Oral Epidemiology, Gerodontology, Journal of Disability and Oral Health and Special Care in Dentistry. STUDY SELECTION: Longitudinal prospective observational studies in individuals of all ages being hospitalised, that assessed changes of the following outcomes: tooth loss, any measures of periodontal health, dental caries and stomatological diseases. There were no language restrictions. DATA EXTRACTION AND SYNTHESIS: One reviewer scanned the titles and abstracts to select studies. Potentially eligible studies were screened by two reviewers who also data extracted using specially designed forms. Quality was assessed by both reviewers using the Newcastle-Ottawa scale for cohort studies. The authors assessed whether a power calculation was reported for each study and, if so, the magnitude of a change that the study was powered to detect. Heterogeneity between studies was anticipated so a narrative review was planned. RESULTS: Five studies were included and all were assessed to be adequately representative and had sufficient follow-up. Outcome assessments were adequate but validity of the outcome measures was found to be subjective. One investigation included children only, whilst the remainder included adults only. Four of the studies were in intensive care units. Duration of hospitalisation was 5-20 days. This was insufficient a period for caries to develop. A power calculation was reported in only one study. Three out of four studies that reported on plaque accumulation found increasing levels of plaque accumulation during hospitalisation, whilst one did not. Two of three studies assessing gingival inflammation found a statistically significant increase. Two studies found a statistically significant increased incidence of mucositis in intubated patients but not in non-intubated patients. CONCLUSIONS: Hospitalisation is associated with a deterioration in oral health, particularly in intubated patients.