dental arch


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arch

 [ahrch]
a structure of bowlike or curved outline.
abdominothoracic arch the lower boundary of the front of the thorax.
arch of aorta (aortic arch) the curving portion between the ascending aorta and the descending aorta, giving rise to the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery.
aortic a's paired vessels arching from the ventral to the dorsal aorta through the branchial clefts of fishes and amniote embryos. In mammalian development, arch 1 largely disappears but may contribute to the maxillary and external carotid arteries; the dorsal portion of arch 2 persists and forms stems of the stapedial arteries; arch 3 joins the common to the internal carotid artery; arch 4 becomes the arch of the aorta and joins the aorta and subclavian artery; arch 5 disappears; and arch 6 forms the pulmonary arteries and, until birth, the ductus arteriosus.
branchial a's
four pairs of arched columns in the neck region of some aquatic vertebrates that bear the gills.
Branchial arches. From Dorland's, 2000.
pharyngeal arches.
dental arch either of the curving structures formed by the crowns of the upper and lower teeth in their normal positions (or by the residual ridge after loss of the teeth); they are called the inferior dental arch (see mandibular arch) and the superior dental arch (see maxillary arch).
a's of foot the longitudinal and transverse arches of the foot. The longitudinal arch comprises the medial arch or pars medialis, formed by the calcaneus, talus, and the navicular, cuneiform, and the first three tarsal bones; and the lateral arch or pars lateralis, formed by the calcaneus, the cuboid bone, and the lateral two metatarsal bones. The transverse arch comprises the navicular, cuneiform, cuboid, and five metatarsal bones.
lingual arch a wire appliance that conforms to the lingual aspect of the dental arch, used to secure movement of the teeth in orthodontic work.
mandibular arch
1. the first branchial arch, being the rudiment of the maxillary and mandibular regions; it also gives rise to the malleus and incus.
2. the dental arch formed by the teeth of the mandible; called also inferior dental arch.
maxillary arch the dental arch formed by the teeth of the maxilla; called also superior dental arch.
neural arch vertebral arch.
palatal arch the arch formed by the roof of the mouth from the teeth on one side to those on the other.
pharyngeal a's structures in the neck region of the human embryo that are analagous to the branchial arches in lower vertebrates; the four pairs of pharyngeal arches are mesenchymal and later cartilaginous structures that develop during the first two months of embryonic life and are separated by clefts (the pharyngeal grooves). As the fetus develops, the arches grow to form structures within the head and neck. Two of them grow together and enclose the cervical sinus, a cavity in the neck. Called also branchial arches.
pubic arch the arch formed by the conjoined rami of the ischium and pubis of the two sides of the body.
pulmonary a's the most caudal of the aortic arches; it becomes the pulmonary artery.
tendinous arch a linear thickening of fascia over some part of a muscle.
vertebral arch the dorsal bony arch of a vertebra, composed of the laminae and pedicles of a vertebra.
zygomatic arch the arch formed by the temporal process of the zygomatic bone and the zygomatic process of the temporal bone. See also anatomic Table of Bones in the Appendices.

den·tal arch

the curved composite structure of the natural dentition and the residual ridge, or the remains thereof after the loss of some or all natural teeth.

den·tal arch

(den'tăl ahrch)
The curved structure formed by the natural dentition and the residual ridge, which remains after the loss of some or all of the natural teeth.

den·tal arch

(den'tăl ahrch)
Curved composite structure of the natural dentition and residual ridge, or the remains thereof after the loss of some or all natural teeth.
See also: arch
References in periodicals archive ?
Developmental changes of the maxillary and mandibular dental arches. Angle Orthod.
Transverse dental and dental arch depth dimensions in the mixed dentition in a skeletal sample from the 14th to the 19th century and Norwegian children and Norwegian Sami children of today.
Congenital anomalies/ malformations, previous orthodontic treatment, allergic to impression material, dental arches having any crown and bridge prostheses, any deformity in maxilla or mandible.
Note the difference in facial structure and development of the dental arches. These results were typical everywhere Price traveled.
The range of measurements for dental width obtained from scanned images of dental cast were ranged from 5.22 to 10.57 mm, and measurements for dental arch dimensions obtained from the same were ranged from 25.71 to 49.86 mm.
Therefore, this study was carried out to assess the association between the presence of MIT and gender, age, dentition type, the degree of overjet (OJ), lip form, respiratory type and dental arch form among patients with Class II division 1 dental malocclusion.
Caption: Figure 3: (a) Stone cast was fabricated from the patient (including teeth/mucosa/bracket contour profiles); (b) reconstructed models from CBCT and laser scanning images; (c) solid models of maxillary bone with teeth reconstructed using CBCT images and maxillary dental arches with mucosa acquired using laser scanning were superimposed using the common register positions at the distoincisal angle of left/right incisors and distobuccal cusp of left/right first molar.
A longitudinal study of the growth and development of the dental arch width from childhood to adolescence in Japanese.
Fourteen gypsum models of dental arches, twelve with different anatomical impairments (Table 1) and two without any abnormalities, were used.
The dimensions of the dental arch are related to individuals and to evolutionary factors such as an increase in intercondylar distance of the cranial base.