Failure Of Eruption Of Teeth
Failure of eruption of teeth happens when a single or multiple teeth fail to erupt in the mouth. This can happen due to many reasons which may include obstruction from primary teeth, bone surrounding the unerupted tooth or other mechanical factors. The two types of failure of eruption are primary failure of eruption and mechanical failure of eruption. Primary failure of eruption has been known to be associated with Parathyroid hormone 1 receptor mutation. Primary failure of eruption The term primary failure of eruption was named by William Proffit and Katherine Vig in 1981. This type of failure of eruption has a genetic or familial background precursor as a cause. The prevalence is of PFE is about 0.06% in population. In this type of failure, teeth that are non-ankylosed fail to erupt in the mouth. These teeth do not have a precursor tooth that is blocking their path. These teeth tend to erupt partially but then fail to erupt as the time goes on. Profitt stated that only the post ...
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Tooth Eruption
Tooth eruption is a process in tooth development in which the teeth enter the mouth and become visible. It is currently believed that the periodontal ligament plays an important role in tooth eruption. The first human teeth to appear, the deciduous (primary) teeth (also known as baby or milk teeth), erupt into the mouth from around 6 months until 2 years of age, in a process known as "teething". These teeth are the only ones in the mouth until a person is about 6 years old creating the primary dentition stage. At that time, the first permanent tooth erupts and begins a time in which there is a combination of primary and permanent teeth, known as the mixed dentition stage, which lasts until the last primary tooth is lost. Then, the remaining permanent teeth erupt into the mouth during the permanent dentition stage. Theories Although researchers agree that tooth eruption is a complex process, there is little agreement on the identity of the mechanism that controls eruption. There ...
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