Which activity is an excellent strategy to maintain strong teeth and healthy gums?

Brushing your teeth at least 3 times a day, flossing after you brush your teeth, using mouth wash after you are done flossing, etc.

Explanation:

Brushing your teeth at least 3 times a day, Breakfast, Lunch, and Dinner, will help you practice good hygiene. Flossing and using mouth wash will also help you practice good hygiene. Be sure to do this every night, morning, and at least every afternoon after you eat.

Note- Now I feel like I'm a dentist after I just said all of that.

answer: because barriers look like ball

explanation: there round and blue like my ball

answer; the above statement is (true); (osha)