Regular dental visits will help you maintain healthy teeth and good oral health in general. Adults should visit the dentist twice a year (every 6 months) and children four times a year (every 3 months).
Every conscientious dentist will take time for a detailed examinaton of your oral cavity and your teeth. Most failures occur when your dentist pays attention to the teeth you indicated as problematic and doesn't pay attention to other teeth. A superficial and brief examination usually causes many failures and finally it will result in more extensive and expensive dental procedures than if the decay or any other change was identified on time.