In order to fix a tooth with a filling (whether it was due to a cavity or a fractured tooth), there are certain parameters that must be met. First, internal walls of a tooth are necessary in order to hold a filling within the tooth. If a fracture or a cavity has caused more than two thirds of a tooth structure to be lost, a filling will not suffice. If, however, at least two thirds of the tooth is intact, using a composite or amalgam material to replace the void will work.
It is possible to get a new cavity around an existing filling. When recurrent cavities require frequent removal and replacement of tooth structure, the remaining tooth becomes extremely brittle. Large fillings and prolonged clenching or grinding habits put teeth at a high fracture risk. When fractures occur, they can be difficult to deal with. Small cracks in our teeth can be similar to a small crack on the windshield of our car. The crack usually starts small and then gets bigger as time progresses. If the cracks are identified early on, we can usually prevent it from propagating into the nerve or root of the tooth. If, however, the fracture continues into the center of the tooth, a root canal or extraction may be necessary. To prevent the advancement of an existing fracture, a crown is placed over the tooth to support the remaining tooth structure and prolong the life of the tooth. For specific questions or concerns, consult with your dentist. He or she will make recommendations based on your specific needs and risk factors.
3 Comments
12/3/2012 07:00:13 pm
Absolutely right,dental crown is the good option as compared with filling.It protect ,support the tooth and help to increase life.
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12/5/2012 04:00:15 pm
While filling the tooth we need to fulfill some parameters like internal walls order and tooth structure.On the other hand a crown is just placed over the tooth and give support and long life.
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3/30/2018 05:42:23 am
Dental crowns are fixed to the outer surface of the tooth to restore shape, strength, function and appearance. They encase a tooth that has been badly damaged or decayed and are cemented on to the surface of the teeth. It fill gaps of your teeth and helps to restore your smile. The crown restores the tooth to its normal shape, size and function and make the tooth stronger or improve the way it looks. Where as dental filling refers to fill the gap of the teeth which is occurs due to cavities.
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