Oral hygiene care for adults with dementia in residential aged care facilities:

The development and psychometric properties of oral health assessment instruments used by non-dental professionals for nursing home residents: a systematic review

BACKGROUND

Globally, oral health status of the geriatric population residing in nursing homes is poor. The integration of non-dental professionals is vital to monitor oral health, early identification and triaging of oral health problems, and timely referral to dental professionals. The aims of this systematic review were to provide a summary on the development and characteristics of oral health assessment instruments currently used by non-dental professionals for nursing home residents, and to perform a critical appraisal of their psychometric properties.

METHODS

This review was conducted as per the PRISMA guidelines. CINHAL (EBSCO), Medline (Ovid), and EMBASE (Ovid) were searched systematically. Two reviewers independently screened the title, abstract, and full text of the studies as per the eligibility criteria. Studies describing oral health assessment instruments used to assess oral health of nursing home residents by non-dental professionals were included. Using a methodological framework, each instrument was evaluated for purpose, content, and psychometric properties related to validity, reliability, feasibility, generalisability, and responsiveness. Additionally, the reporting quality assessment of each included study was performed according to the SURGE guidelines.

RESULTS

Out of the 819 screened articles, 10 studies were included in this review. The 10 identified instruments integrated 2 to 12 categories to assess oral health, which was scored on a 2 to 5-point scale. However, the measurement content varied widely, and none were able to comprehensively measure all aspects of oral health. Three measurement approaches were identified: performance- based assessment, direct inspection of the oral health status, and interview measures. Only eight instruments provided quality assessment on the basis of validity, reliability, feasibility and generalisability, whereas three instruments- Brief Oral Health Status Examination, Dental Hygiene Registration, and Oral Health Assessment Tool reported good methodological quality on at least one assessment criteria.

CONCLUSIONS

None of the instruments identified in this review provided a comprehensive assessment of oral health, while three instruments appeared to be valid and reliable. Nonetheless, continuous development of instruments is essential to embrace the complete spectrum of oral health and address the psychometric gaps.

Interventions to Improve the Oral Health of People with Dementia or Cognitive Impairment: A Review of the Literature

OBJECTIVE

Oral diseases and conditions are prevalent among older people with dementia and cognitive impairment. While many interventions have been advocated for use in this population, evidence for their effectiveness is unclear. Our objective was to review systematically the content and effectiveness of interventions and implementation strategies used to improve or maintain the oral health of people with dementia or cognitive impairment.

METHODS

Original studies published in English at any time until January 2015 were identified through electronic searches of the Medline, Embase, CINAHL, Scopus and Cochrane databases and hand searches of eligible studies and relevant reviews. Two investigators independently abstracted study characteristics and assessed the methodological quality of eligible studies. Results were presented as a narrative review because significant heterogeneity among included studies precluded a meta-analysis.

RESULTS

The 18 included studies varied considerably in terms of size, scope and focus. Only two studies were identified that had been designed specifically for and examined exclusively in people with dementia or cognitive impairment. All studies were in residential care; none was population-based. While several studies reported positive effects, a number of methodological weaknesses were identified and the overall quality of included studies was poor. The specific outcomes targeted varied across studies but most studies focused almost exclusively on proximal clinical oral health outcomes such as levels of dental or denture plaque. Attempts to measure intervention integrity were limited and there was usually little or no effort to evaluate intervention effects over a sustained period.

CONCLUSION

There is a lack of high quality evidence to support the effectiveness of oral health interventions and implementation strategies for older people with dementia or cognitive impairment. More rigorous, large scale research is needed in this area. Recommendations are provided to improve the overall quality of evaluation in this area. Emphasis must be placed on developing evidence-based, achievable and sustainable oral health strategies if the needs of people with dementia and cognitive impairment are to be met into the future.