Search results
Results from the WOW.Com Content Network
The most acknowledged theory for supernumerary teeth is hyperactivity of dental lamina. [6] On completion of the dentition, the dental lamina is usually destroyed and reabsorbed, but when remnants fail to resorb, it can continue to proliferate abnormally. This abnormal proliferation can form the extra tooth bud leading to supernumerary teeth ...
As their teeth wear down, older tuatara have to switch to softer prey, such as earthworms, larvae, and slugs, and eventually have to chew their food between smooth jaw bones. [56] The tuatara possesses palatal dentition (teeth growing from the bones of the roof of the mouth), which is ancestrally present in reptiles (and tetrapods generally). [57]
The Gempylidae are a family of scombriform ray-finned fishes commonly known as snake mackerels or escolars. The family includes about 25 species. The family includes about 25 species. They are elongated fishes with a similar appearance to barracudas , having a long dorsal fin , usually with one or finlets trailing it.
New, permanent teeth grow in the jaws, usually under or just behind the old tooth, from stem cells in the dental lamina. [5] Young animals typically have a full set of teeth when they hatch; there is no tooth change in the egg. Within days, tooth replacement begins, usually in the back of the jaw continuing forward like a wave.
The Anguiculus dicaprioi is a copper-coloured snake with a short head, large nostrils and ‘dozens of teeth’ Newly discovered Himalayan snake species with ‘dozens of teeth’ named after ...
This tissue is primarily basal lamina. It is usually worn away by mastication and cleaning. It is usually worn away by mastication and cleaning. The primary enamel cuticle protects enamel from resorption by cells of the dental sac and also secretes desmolytic enzymes for elimination of the dental sac, allowing fusion between reduced enamel ...
Acrodonty (from Greek akros 'highest' [1] + odont-'tooth') is an anatomical placement of the teeth at the summit of the alveolar ridge of the jaw, without sockets, [2] characteristic of bony fish. Functionally, acrodont tooth implantation may be related to greater bite force. [ 3 ]
It is the process of identification by a post-mortem dental examination of a deceased individual (or individuals); comparing those findings with the ante-mortem dental records, radiographs, study casts, and so on believed to be those of the individual (or individuals) implicated; and assessing the concordance and/or discrepancy between the two.