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The frequency for ankylosis to happen in deciduous teeth is far more frequent than that in permanent teeth, with a ratio of about 10 to 1, and the majority of [4] the ankylosed teeth occur in lower teeth, about twice as often as in the upper teeth. [6] Therefore, it is strongly believed that their incidence may be due to different causes.
Idiopathic osteosclerosis, also known as enostosis or dense bone island, is a condition which may be found around the roots of a tooth, usually a premolar or molar. [2] It is usually painless and found during routine radiographs as an amorphous radiopaque (light) area around a tooth.
Teeth that are affected are primary mandibular molars followed by secondary premolars in the mandible and maxilla, however any teeth may be affected. [6] While no one race is primarily affected, those with conditions that affect bone hormone levels such as Paget's disease and acromegaly are more likely to develop hypercementosis.
The osseous tissue replaces the periodontal ligament which causes the tooth to be fixed and cannot undergo eruptive change. Ankylosis usually occurs in primary molars; however, it can also take place in other primary teeth, as well as secondary dentition.
There are currently no preventative measures available for cementomas. Treatment of a cementoma involves surgically removing the mass and possibly a portion of the affected area and/or teeth. Surgical removal without damage to surrounding teeth is limited unless the lesion is small and if there is a sufficient crown-to-root ratio.
The specific cause of teeth grinding and clenching is still a bit of a mystery, partly because so many factors can be related to bruxism, Messina says. "Bruxism is a collection of symptoms that ...
This may cause a person to retain their primary tooth instead of having it replaced by a permanent one. A technique for altering the natural progression of eruption is employed by orthodontists who wish to delay or speed up the eruption of certain teeth for reasons of space maintenance or otherwise preventing crowding and/or spacing. If a ...
Most often, the cause of impaction is inadequate arch length and space in which to erupt. That is the total length of the alveolar arch is smaller than the tooth arch (the combined mesiodistal width of each tooth). The wisdom teeth (third molars) are frequently impacted because they are the last teeth to erupt in the oral cavity.