Dental cavities (tooth decay) is a disease caused by bacteria that can cause tooth destruction. An inadequate diet and poor oral hygiene can facilitate the appearance of cavities.

The best treatment for tooth decay is direct restoration with composite resin (white material, the same colour as the teeth) in just one session. However, when the tooth destruction is very extensive, it may be necessary to perform an indirect restoration in a laboratory, in order to reinforce the tooth structure. This type of restoration requires laboratory work and, therefore, requires more appointments to be completed.

Can a dental cavity cause pain?

Yes. The tooth decay process is generally slow and at first there are usually no symptoms. However, as the tooth decay progresses, deep cavities appear that reach the dentin (the softer tissue beneath the enamel) and complaints can range from discomfort with increased sensitivity and bad breath, to more complicated situations with pain in the presence of different types of stimuli (hot, cold or sweet), or even the appearance of very intense spontaneous pain.

What are the symptoms of a dental cavity?

  • White, grey or brown spots on the surface of the tooth;
  • Discomfort when chewing or touching;
  • Pain;
  • Bad breath;
  • Increased sensitivity to hot, cold or sweet foods or drinks.

Can a tooth that has already been treated have a cavity?

Any tooth in the oral cavity, whether treated or not, can suffer from a decay lesion. Careful hygiene and a healthy diet are necessary to maintain good oral health, as well as regular visits to the dentist and/or hygienist.