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Bottom teeth of a seven-year-old, showing primary teeth (left), a lost primary tooth (middle), and a permanent tooth (right) Tooth eruption in humans is a process in tooth development in which the teeth enter the mouth and become visible. Current research indicates that the periodontal ligaments play an important role in tooth eruption.
Human tooth development. Tooth development or odontogenesis is the complex process by which teeth form from embryonic cells, grow, and erupt into the mouth. For human teeth to have a healthy oral environment, all parts of the tooth must develop during appropriate stages of fetal development.
Dental anatomy is a field of anatomy dedicated to the study of human tooth structures. The development, appearance, and classification of teeth fall within its purview. (The function of teeth as they contact one another falls elsewhere, under dental occlusion .) Tooth formation begins before birth, and the teeth's eventual morphology is ...
Calculus (dental) Heavy staining and calculus deposits exhibited on the lingual surface of the mandibular anterior teeth, along the gumline. Calculus deposit (indicated with a red arrow) on x-ray image. In dentistry, calculus or tartar is a form of hardened dental plaque. It is caused by precipitation of minerals from saliva and gingival ...
Torus mandibularis is a bony growth in the mandible along the surface nearest to the tongue. Mandibular tori usually are present near the premolars and above the location on the mandible of the mylohyoid muscle attachment. [ 1] In 90% of cases, a torus is on both inner sides of the mandible (left and right); however, they may differ in size.
The alveolar process ( / ælˈviːələr, ˌælviˈoʊlər, ˈælviələr /) [ 1] is the portion of bone containing the tooth sockets on the jaw bones (in humans, the maxilla and the mandible ). The alveolar process is covered by gums within the mouth, terminating roughly along the line of the mandibular canal. Partially comprising compact bone ...
Dilaceration is a developmental disturbance in shape of teeth. It refers to an angulation, or a sharp bend or curve, in the root or crown of a formed tooth. This disturbance is more likely to affect the maxillary incisors and occurs in permanent dentition. [ 1] Although this may seem more of an aesthetics issue, an impacted maxillary incisor ...
Palatal expansion. A palatal expander is a device in the field of orthodontics which is used to widen the upper jaw ( maxilla) [ 1] so that the bottom and upper teeth will fit together better. [ 2][ 3] This is a common orthodontic procedure. The use of an expander is most common in children and adolescents 8–18 years of age.