Root canal treatment will be followed by the placement of a dental crown. In some cases, the dentist may suggest dental post and core before the placement of the dental crown. In the case of missing tooth, a core placement is done in order to close the gap before placing the Crown. Post and core treatment use a dental post which anchors the core to the tooth. A post and core can be used only for a tooth that has undergone root canal treatment. A post is necessary if more than half of a tooth's crown has been lost. If more than half remains, a core is sufficient. The prosthodontic surgeon, commonly known as prosthodontist uses fillers like amalgam or bonding to tooth and pins to anchor the core. The idea that post strengthens the teeth is a misconception. Posts are generally made out of metals. Ceramic and carbon-fiber posts are also available. Once the post and core get completed, a crown can be fabricated to be placed on the tooth. Regarding the insurance, some plans cover post and cores. Cores alone are usually not covered by some plans. Crown failure does not lead to tooth loss. However, post and core failure may cause loss of the tooth. Studies show that on an average, dental restoration using post and cores last up to 13.5 years. Longevity, however, depends more on the tooth's initial conditions. The cost of this treatment may vary for every patient and depend on the number of procedures done.
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