Oral health for older people living in nursing homes has long been an area of interest and concern, with suboptimal oral health often having significant effects on their general health, well-being and quality of life. This article outlines the reasons why oral health can deteriorate in nursing home residents and the potential effects of this, and provides information about relevant national guidance. The article also details practical recommendations for nursing home staff on improving residents’ oral hygiene, including undertaking oral health assessments, delivering mouth care and accessing dental services.