How long does cavities last?

Every cavity is different. On average, generally speaking, it can take anywhere from six months to four or five years before a cavity needs treatment. Fillings usually last about 10 years. Many restorations (the clinical term for dental fillings) last much longer.

Tooth decay found within the enamel can only be left untreated for up to a year before it needs to be re-evaluated. The reevaluation requires a clinical examination by a dentist and also x-rays to compare if the cavity has grown or not. How long does it take for a cavity to reach the nerve? If you have reason to think that you might have a cavity, you should schedule an appointment with your dentist right away. Cavities may not have any noticeable symptoms.

This is one of the reasons why it's so important to schedule routine checkups at the dentist's office every six months. That way, your dentist can identify and treat tooth decay as soon as possible. Cavities found in the pulp tend to be very large in size and may or may not cause a large hole in the tooth. You might think that all cavities hurt, but oddly enough, some superficial cavities hurt and some deep cavities don't.

Dentin cavities should be treated as soon as possible, as they are irreversible and the treatment of choice is cavity filling. However, there are times when your dentist may recommend that you be treated for cavities, for example, if you are at high risk of tooth decay.