Why do i get so many cavities when i keep good dental hygiene?

Perhaps you don't?: Many patients who think they are practicing good oral hygiene, in fact, aren't. There are many reasons for possible cavities- diets high in refined sticky sugars, brushing and flossing before rather that after eating and snacks; sipping sodas, coffee with sugar, etc. Your own dentist can go over all these and other possibilities with you and together you can solve the mystery.

Microbiology: Believe it or not, the biggest factor in tooth decay is not how clean they are (which is important) but how often the acid-producing-bacteria "eat." so, if you have a few m&m's every hour & brush every time, you'll have more cavities than someone who eats a whole bag of m&m's for breakfast and brushes once & doesn't snack all day. There are many details specific to each person. Ask your dds :).

Food you eat: Make sure you don't drink sodas, chew sweet gum, smoke or chew tobacco. Also, avoid brushing your teeth at least 30 minutes after eating or drinking acidic foods or beverages. http://otwithmd.com/important-tipson-dental-health-and-hygiene/.

Weak enamel?: It could be that the outer layer of your teeth (the enamel) did not form properly. Your dentist can give you advice on how to minimize tooth decay even with weak enamel.

Many reasons: Lack of Fluoride in your water during tooth development, dry mouth, bacterial flora, all play a role. Also, you may want to get your home care regime re- evaluated by a second professional.