incisor

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incisor

 (I) [in-si´zor]
1. adapted for cutting.
2. incisor tooth; see tooth.

in·ci·sor tooth

[TA]
a tooth with a chisel-shaped crown and a single conical tapering root; there are four of these teeth in the anterior part of each jaw, in both the deciduous and the permanent dentitions.
Synonym(s): dens incisivus [TA], incisor

incisor

/in·ci·sor/ (I) (-si´zer)
1. adapted for cutting.

incisor

(ĭn-sī′zər)
n.
A tooth adapted for cutting or gnawing, located at the front of the mouth along the apex of the dental arch.

incisor

[insī′zər]
one of the four anterior teeth in each dental arch. Primary incisors appear during infancy and are replaced during childhood by secondary incisors. The crown of each incisor is chisel shaped and has a sharp cutting edge. Its labial surface is convex, smooth, and highly polished; its lingual surface is concave and, in many individuals, is marked by an inverted V-shaped basal ridge near the gingiva of the maxillary arch. The neck of an incisor is constricted, and the root is single, long, and conic. The upper incisors are larger and stronger than the lower and are directed downward and forward. Compare canine tooth, molar, premolar.

in·ci·sor tooth

(in-sī'zŏr tūth) [TA]
A tooth with a chisel-shaped crown and a single conic tapering root; there are four of these teeth in the anterior part of each jaw, in both the deciduous and the permanent dentitions (e.g., central and lateral teeth).
Synonym(s): dens incisivus [TA] , incisor.

incisor

One of the four central teeth of each jaw, with cutting edges for biting pieces off food. The incisors are situated immediately in front of the canine teeth.

incisor

a front, chisel-shaped tooth in mammals, normally used for cutting or gnawing purposes. In some species incisors continue to grow throughout life - for example, gnawing rodents and rabbits have ‘persistent pulps'where the pulp cavity remains open throughout life - while in other species they are modified as tusks.

in·ci·sor tooth

(in-sī'zŏr tūth) [TA]
Tooth with a chisel-shaped crown and a single conic tapering root; there are four of these teeth in anterior part of each jaw, in both deciduous and permanent dentitions.
Synonym(s): dens incisivus; incisor [TA] .

incisor

1. adapted for cutting.
2. any one of the six (eight in ruminants but only in the lower jaw) front teeth of either jaw. See also teeth.
References in periodicals archive ?
Concerning the amount of upper incisors retroinclination found out in the group with skeletal anchorage, it agrees with the results of other studies, (27-31) which do not present incisors proclination, thus proving the efficiency of anchorage systems supported on implants.
The distal end of Galvayne's groove should be visible on the upper corner of the upper incisor.
2), which may correspond to the upper incisors of a lagomorph (see Cuffey & Hattin 1965).
Perhaps the differing layer thickness evident in the upper incisors is an adaptation related to fossorial lifestyle.
Maxillary overexpansion would occur and dental changes such as upper incisors proclination rather than skeletal maxillary advancement may manifest as side effects of this treatment.
4%), a big city dweller, two medial upper incisors with increased dimensions were reported.
Before the commencement of intraoral examination lip coverage of upper incisors were observed in resting position without the awareness of the child.
Patient gave a history of root canal treatment with respect to the upper incisors and periapical surgery with respect to 11 and 21 approximately 2 years ago.
3 and 4), (3) upper incisors short and convergent or blade-like (Fig.
From an anatomic point of view, it may be classified, according to gingival line localization, as high, medium, and low, depending on the relation between the upper lip inferior edge and the upper incisors and their gingiva.
Dentally, the upper incisors are retroclined to the maxillary plane (96A) while the lower incisors are proclined to the mandibular plane (105 [THORN]e).