Introduction
gingivitis, MCI, cognitive impairment
GINGIVITIS, PLAQUE
In most parts of the world, life expectancy is increasing, and many countries have a square-formed population pyramid with growing groups of older people [An increasing part of older people also retain their teeth throughout life [Finding simple and inexpensive methods to preserve and improve oral health in older people with cognitive impairment is essential to obtaining good general health and quality of life. A meta-analysis from the Cochrane Institute showed that powered toothbrushes provide a statistically significant advantage compared to manual toothbrushes in terms of reduction of plaque and gingivitis in both the short and long term. The included studies showed a high level of heterogeneity that was not explained by different brush models but was more likely due to different brush patterns, frequency, and duration [Using a powered toothbrush among individuals with MCI has demonstrated that oral health can be improved [