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The arrows point in the following directions: distal ←, mesial →, coronal ↑, apical ↓. Distal The direction toward the gingiva beyond the tooth furthest from the anterior midline (the 'most posterior tooth' or last tooth) in each quadrant of a dental arch, as opposed to mesial, which refers to the direction toward the anterior midline.
Molar distalization is a process in the field of Orthodontics which is used to move molar teeth, especially permanent first molars, distally (backwards) in an arch.This procedure is often used in treatment of patients who have Class 2 malocclusion. [1]
[46] [47] For example, the terms "distal" and "proximal" are also redefined to mean the distance away or close to the dental arch, and "medial" and "lateral" are used to refer to the closeness to the midline of the dental arch. [48]
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.)
To the structures in the lingual part of the molar, the prefix "ento-" ("internal") is often added, while those of the lingual part are added the prefix "ecto-" ("external"). the mesial part of the molar is often added the prefix "pre-" (from "previous") while those of the distal part are added the prefix "post-" ("posterior"). The mesial part ...
The mesial outline of the tooth is straight or slightly convex, whereas the distal outline is much more convex. [11] Consequently, the height of curvature (the point furthest away from the central axis of the tooth) is closer to the mesioincisal angle on the mesial side while more apical on the distal side. The distal outline of the crown is ...
One other variation of the upper first premolar is the 'Uto-Aztecan' upper premolar. It is a bulge on the buccal cusp that is only found in Native American Indians, with highest frequencies of occurrence in Arizona. The name is not a dental term; it comes from a regional linguistic division of Native American Indian language groups.
Later during the development of the jaws, permanent molars arise directly from the distal extension of the dental lamina. The vestibular lamina is the thickening of oral epithelium in a facial [6] or buccal direction from the dental lamina. Meanwhile, a cleft will form a groove that becomes the area of the mucobuccal or mucolabial fold in the ...