The best precaution you can take is to properly brush your teeth. Use a soft-bristled brush to gently brush your teeth. Ensure you thoroughly clean every surface of each tooth. Do it for at least two minutes. This will eliminate the sugars that bacteria feed on and get rid of plaque.
You should brush your teeth at least twice a day. Use fluoride-containing toothpastes and mouthwashes as they help prevent tooth decay.
Avoid frequent snacking. Otherwise. your teeth will be bombarded with an overload of bacteria that accelerates tooth decay.
Most importantly, visit your dentist at least once every six months. Your dentist will examine your teeth and spot any problems early, meaning decay won’t have a chance to get bad enough to require a crown, root canal, or extraction. Regular oral exams and cleaning will also help prevent decay from forming.