Periapical Cyst
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A periapical cyst (otherwise known as a radicular, or odontogenic cyst) can appear on the tooth area. This kind of cyst occurs when a tooth becomes infected, causing the tissue around it to decay. This can spread to the apex, and into the adjacent bone, which can eventually lead to formation of cysts. Therefore, these types of cyst are generally featured on the apex of the tooth. A periapical cyst is usually caused by inflammation of the pulp, or dental caries. They are also notable for the small size. The cyst itself can contain fluids (blood, gel, or pus, for instance) or even gas. Periapical cysts tend to be more common among thirty to sixty year olds. Initially they may not be noticeable, but if it becomes too big it could affect your teeth and to an extent force them to move.Treatment
In regards to treatment, you have a number of options should you develop a periapical cyst. The most common way to resolve the issue is through root canal treatment on the afflicted tooth. The aim is to save and restore the pulp (the inner part of the tooth). Your dentist will drill into your tooth to allow pus to escape through the tooth. The dead pulpal tissue will be removed during this process. Your doctor will fill the space with a root filling to avert any further infection. It will be necessary to monitor this procedure with x-rays. Regardless of whether the cyst is causing you pain, you will require root canal treatment, to ensure that the cyst does not re-emerge).
Alternatives
Should that root canal treatment fail to alleviate the problem, the cyst will need to be surgically removed, a method to be accompanied with an apicectomy, a surgical removal of the apex of the root. However, this is only required in rare cases, as root canal treatment is normally very effective in dealing with problems of this kind.
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