dentition

(redirected from natural dentition)
Also found in: Dictionary, Thesaurus, Medical.

dentition,

kind, number, and arrangement of the teethteeth,
hard, calcified structures embedded in the bone of the jaws of vertebrates that perform the primary function of mastication. Humans and most other mammals have a temporary set of teeth, the deciduous, or milk, teeth; in humans, they usually erupt between the 6th and 24th
..... Click the link for more information.
 of humans and other animals. During the course of evolution, teeth were derived from bony body scales similar to the placoid scales on the skin of modern sharks. Tooth structures such as those found in humans are restricted to certain vertebrates, i.e., most fish, mammals, and reptiles, and some amphibians. The teeth of sharks, which are primitive vertebrates, consist of simple conelike structures, sometimes with serrated edges and sometimes flattened for crushing shelled prey. In many lower vertebrates the individual teeth are replaced throughout the animal's life; old tooth loss and new tooth growth follow wavelike patterns down the length of jaw and affect alternate teeth at any one time, so that half the teeth in a region are always functional. Fish and reptiles that have teeth have homodont dentition; that is, all teeth are identical. The mammals have heterodont dentition, or teeth of different basic types, including incisors for nipping or cutting, canines for piercing, and premolars and molars for shearing and grinding. Carnivorous animals have relatively small incisors, used for grasping rather than for cutting; long and strong canines; and relatively thin, sharp premolars and molars, used for severing muscle and other tissues. Herbivorous animals have well-developed incisors, used to cut grass and other vegetation; canines that are either smaller than those of carnivores or absent altogether; and broad, flat premolars and molars for grinding food. In some herbivores, the upper canines are absent, so they cut vegetation by the combined action of the tongue and lower incisors. Omnivorous animals such as man have less specialized dentition. Only part of the dentition of mammals is usually replaced; however, the incisors of rodents grow out at the base as fast as they wear down at the tip. Teeth, the hardest structures in the body, have been well preserved as fossils and have played an important role for paleontologists and physical anthropologists in the study of human evolution.

dentition

[den′tish·ən]
(vertebrate zoology)
The arrangement, type, and number of teeth which are variously located in the oral or in the pharyngeal cavities, or in both, in vertebrates.

dentition

1. the arrangement, type, and number of the teeth in a particular species. Man has a primary dentition of deciduous teeth and a secondary dentition of permanent teeth
2. teething or the time or process of teething
References in periodicals archive ?
While implants do provide a useful option for patients whose natural dentition is unable to be maintained, sustained progress in periodontics has made preservation more attainable.
High edentulism rates address incredulity on natural dentition, making a path for considering dental loss natural.
Patients generally emphasize on the esthetic excellence in anterior restoration and to satisfy their esthetic needs, Selection of appropriate shade and color matching to the natural dentition is critical.
Destructive forces associated with nonworking side contacts were first observed by Schuyler who concluded that they were traumatic to the natural dentition, causing neuromuscular disturbances, temporomandibular joint dysfunction, accelerated or increased periodontal breakdown and excessive wear.
Hargreaves (1969) (7) in his survey found that in a considerable number of denture fracture cases, it was opposed by natural dentition. Recontouring the existing natural teeth to produce an uniform occlusal plane and establishment of balanced occlusion can reduce the incidence to some extent.
It also varies in respect to remaining natural dentition so that is why classification of partial edentulous space is very much necessary.
Following the loss of natural dentition the edentulous individual can be faced with a number of problems associated with wearing complete dentures.
It is approved for single-tooth restorations such as inlays, onlays, veneers and crowns, and is also distinguished not least by the superior comfort it offers to patients, thanks to material properties similar to those of natural dentition.
A study in Romania24 while spotlighting the etiologies behind tooth surface loss explores abrasion (55.7%) to frequently affect the natural dentition as compared to the other etiologies associated with non-cervical tooth surface loss.
Patient demand is also higher for an exact replication of their restoration to their natural dentition especially if it is a single unit restoration.
Literature shows a decreasing trend for total tooth loss and an increase in number of partial denture wearers which not only reflects improving clinical trends and successful preventive measures but also indicates an increased awareness among population regarding significance of maintaining oral hygiene and retention of natural dentition.3 Some of the partial edentulous states are more challenging to treat successfully.
Validity of intraoral soft tissue landmarks as reference points for orientation of occlusal plane in natural dentition: A clinical study.