Which of the following statements about oral hygiene is true?

Oral hygiene plays a crucial role in overall health and well-being. Proper oral care can significantly contribute to preventing halitosis, which is bad breath, as well as dental infections, gum disease, and other systemic health issues that can arise from poor oral hygiene practices. This is particularly important in vulnerable populations, such as the elderly, who may be more susceptible to infections and have a higher risk for complications from oral health issues.

The other statements do not accurately reflect the comprehensive impact of oral hygiene. For example, it can indeed affect appetite and social interactions, as poor oral health can lead to discomfort while eating or an unattractive appearance that can socially isolate individuals. Additionally, the effects of oral hygiene are not limited to younger residents; all age groups need appropriate oral care for optimal health.