Fillings have long been the commonest method of solving problems with cavities in teeth. If cavities are not filled in or treated in some other way, they can eventually lead to chronic pain. Most dentists advise that a cavity is filled before more extreme methods are used, such as root canal treatment or extraction.
Preparation for a filling
If your dentist in Burlington, Ontario finds a cavity, he or she will first remove the part of the tooth that has decayed. Air abrasion, a drill, or sometimes a laser, are the usual methods used to remove the decay. The next step is the preparation of the area so that a filling will sit nicely in the space and there is no remaining bacteria or debris still present. If any decay is found near the nerve a liner may be put in place to protect the nerve from further damage.
Choice of filling type
Patients are able to choose from a variety of colours and materials for the fillings with the preference being tooth coloured fillings as they are barely noticeable. These fillings are fitted a layer at a time. After one layer is placed a special light is used which will harden the filling material and another layer is applied until the gap has been sufficiently filled then the filling is shaped to match surrounding teeth.
Apart from tooth coloured fillings which are made from composite resin there are other types too including gold, porcelain and silver amalgam. Often, the patient will choose partly depending on the position of the filling and partly on the cost. Silver amalgam fillings are stronger, normally cheaper but can be seen more easily so these are often used for back teeth while composite resin filings which are tooth coloured are preferred in teeth that are more visible.
Research is constantly being undertaken to improve the quality and life span of fillings. Your dentist in Burlington, Ontario will recommend the most suitable filling material to match your requirements.