Which of the following best describes a perio-aid?

A perio-aid is specifically designed to assist in maintaining periodontal health by effectively cleaning between teeth and along the gum line. It typically consists of a handle that holds flexible toothpicks or other cleaning instruments, allowing users to access areas that are difficult to reach with a regular toothbrush. This is particularly beneficial for individuals with gum disease or those at higher risk for periodontal issues, as it promotes better oral hygiene in those susceptible areas.

The other options describe different dental tools or products that serve various functions. For instance, the device for delivering mouthwash directly to teeth involves rinsing rather than mechanical cleaning, while a toothbrush designed for sensitive gums focuses on softer bristles for comfort, rather than targeted cleaning in hard-to-reach spaces. The tool for replacing lost dental fillings pertains to restorative dentistry and does not relate to periodontal maintenance.