How many times a day should you brush your teeth? and is mouthwash bad for your teeth?

Brushing teeth: Ideally one should brush after every meal. If that's not practical, at least rinse mouth thoroughly after eating. Recent studies suggest one should wait 30-60 minutes after eating before brushing as immediate brushing may increase effect of acids on enamel. Rinsing is recommended until one brushes. Sugary mouthwashes may attack enamel.

3 is enough: Brushing your teeth more than 3-4 times per day can cause damage to your teeth called tooth brush abrasion. Also mouth wash with high concentrations of alcohol can cause irriation to the cells in your mouth if used too frequently.

Everytime you eat: Brushing after you eat reduces the chance for cavities. If you can't brush, rinse with water. The type of mouth wash matters, but generally no.

At least 2 x per day: For most people, brushing/flossing twice a day is adequate. However, many people can benefit from brushing more than that. Once a day, unfortunately, is usually not enough. Mouthwash can feel good and give you fresh breath--and kill some bacteria--but it does not remove plaque from around your teeth. Therefore, it is never a substitute for brushing/flossing. Some people are sensitive to mouthwash.

Ideally 30-60 minutes after each major meal. Don't brush for 1st 30 minutes. Practically brush before burst. If you remove bacteria, there's no pathogens to turn your burst into acid. Brush & floss or WaterPik last thing before bed to remove both bacteria and food debris. Must brush AT LEAST 2 full minutes by clock w pea-sized fluoridated t'paste. Most adult decay/gum disease preventable w floss.