Should amalgam fillings be replaced? How long do composite fillings last?

Amalgam fillings were once commonly used to fill cavities. Such fillings are very durable and resistant. So if they were made correctly and are tight, there is no need to replace them. This is not advisable, especially since each filling change is associated with the loss of part of the tooth. However, if there is even the slightest leak in the filling (it would be best assessed by a dentist), there is no point in waiting and the filling should be replaced as soon as possible. However, each composite filling (white) should theoretically be replaced every 5 years. Of course, the final decision to replace the filling is made by the doctor. If the doctor does not notice any disturbing symptoms, the filling does not need to be changed. The filling needs to be replaced when it is no longer tight, i.e. a gap appears between the tooth and the filling. A leaky filling may cause tooth decay, may cause pain, and most importantly, it does not protect the tooth against harmful factors of the external environment (bacteria, temperature changes). This, in turn, may cause inflammation and tooth death. This condition may even be asymptomatic at first, which is why regular dental check-ups at the dentist’s, at least once a year, are so important. The doctor is able to notice the leakage of the filling earlier and determine the need to replace it. This will protect the patient against the development of caries in the tooth, and perhaps even against root canal treatment, which is much more expensive than replacing the filling. Leakage, just like the change in the color of the filling, is related to the wear of the material, it is normal, everything that is used changes and wears out. In addition, the color of our teeth changes slightly, which intensifies the difference in color between the tooth and the filling.

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