Dental crowns are used to save a tooth that has lost too much of its hard enamel. Cavities and decay destroy the enamel and expose the soft tissue and nerves underneath. This is what gives you a toothache. If the cavity is small it can be cleaned out and then filled. In some cases, there is not enough hard enamel left to hold a filling and the only options are to either remove the tooth completely or place a dental crown over the entire tooth.
After Your Temporary Crown is Secured
Once you have your temporary crown, it should feel just like a normal tooth. You can eat and smile normally. However, do not delay on getting your final crown fitted because temporary crowns do not use a permanent adhesive. It takes time and specialized equipment to make a dental crown that will last a long time. Dental crowns have to stand up to the pressure of biting and chewing and they have to be strong. After about 2 weeks you are at risk of having the adhesive fail where the crown may come off. Food and saliva can get in the actual tooth and cause negative effects. Additionally, a temporary crown can come off completely and leave your tooth exposed to decay. This can cause the tooth to have even less enamel to protect it.