Search results
Results from the WOW.Com Content Network
The opposite of hyperdontia is hypodontia, where there is a congenital lack of teeth, which is a condition seen more commonly than hyperdontia. [1] The scientific definition of hyperdontia is "any tooth or odontogenic structure that is formed from tooth germ in excess of usual number for any given region of the dental arch."
In true generalized macrodontia, all teeth grow in larger than normal. This is a symptom of rare genetic disorder cases of growth hormone excess called pituitary gigantism. Other patients may have a disease called Rabson-Mendenhall syndrome which predisposes to generalized macrodontia. This causes insulin resistance and is an autosomal ...
Double teeth are usually larger than normal teeth and have a groove/fold in the enamel on the labial surface that can extend further down the root. In tooth gemination, this groove often symmetrically divides the tooth in half. [6] Mader’s “two-tooth” rule can help distinguish between tooth fusion and gemination.
By targeting the USAG-1 gene, researchers believe that they can help people without a full set of teeth regrow teeth. The team says that humans have a third set of teeth available as buds, ready ...
When there is a case of hypodontia of the permanent premolar teeth, the primary molar teeth would often remain in the mouth beyond the time they are meant to be lost. [76] Therefore, with a presence of healthy primary teeth in the absence of a permanent successor, retaining the primary teeth can be a feasible management of hypodontia.
Supernumerary roots is a condition found in teeth when there may be a larger number of roots than expected. The most common teeth affected are mandibular (lower) canines, premolars, and molars, especially third molars. Canines and most premolars, except for maxillary (upper) first premolars, usually have one root.
Occlusal trauma; Secondary occlusal trauma on X-ray film displays two lone-standing mandibular teeth, the lower left first premolar and canine. As the remnants of a once full complement of 16 lower teeth, these two teeth have been alone in opposing the forces associated with mastication for some time, as can be evidenced by the widened PDL surrounding the premolar.
In order to treat mobility, teeth can be joined or splinted together in order to distribute biting forces between several teeth rather than the individual mobile tooth. A splint differs from a mouthguard as a mouth guard covers both gums and teeth to prevent injury and absorb shock from falls or blows.