Some of the basics of preventive care in dentistry is that you should brush your teeth twice a day. You can take it up to three max but not more than that. Do not over do anything, as that will also negatively affect your health. Make sure to use a nice fluoride toothpaste every time. Always keep a floss handy. Floss in between major meals. When outside or in office, or even for date night, it is easier to floss than brush and it always helps.
Periodic dental visits are one of the most important aspects of any preventive dental care routine.