dilaceration


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dilaceration

 [di-las″er-a´shun]
a tearing apart, as of a cataract. In dentistry, an abnormal angulation or curve in the root or crown of a formed tooth.

di·lac·er·a·tion

(dī-las'er-ā'shŭn),
Displacement of some portion of a developing tooth, which is then further developed in its new relation, resulting in a tooth with sharply angulated root(s).
[L. di-lacero, pp. laceratus, to tear in pieces, fr. lacer, mangled]

dilaceration

/di·lac·er·a·tion/ (di-las″er-a´shun) a tearing apart, as of a cataract. In dentistry, an abnormal angulation or curve in the root or crown of a formed tooth.

dilaceration

[dī·las′ərā′shən]
Etymology: L. di-, apart or through + lacerare, to tear
1 a tearing apart, as of a cataract.
2 (in dentistry) a condition resulting from injury to a tooth during its developmental period or as a result of insufficient space for a tooth to develop, with a crease or band at the junction of the crown and root, or with tortuous roots having abnormal curvatures. Not to be confused with normal root curvature.
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Dilaceration

di·lac·er·a·tion

(dī-las'ĕr-ā'shŭn)
Displacement of some portion of a developing tooth, which is then further developed in its new relation, so that its root or crown is sharply angulated.

di·lac·er·a·tion

(dī-las'ĕr-ā'shŭn)
Displacement of some portion of a developing tooth, which is then further developed in its new relation.

dilaceration

a tearing apart, as of a cataract. In dentistry, an abnormal angulation or curve in the root or crown of a formed tooth.
References in periodicals archive ?
The criteria for recognizing root dilaceration vary in the literature.
Cone beam computed tomography, labial access cavity preparation, maxillary lateral incisor, root canal treatment, root dilaceration.
Full-mouth rehabilitation was undertaken but later, in the permanent dentition, the patient was diagnosed with dilaceration of the maxillary left permanent central incisor, severely crowded maxillary dentition and palatally displaced second premolars (Figure 5a).
Patients' dental records and radiographs were examined in order to detect the dental anomalies: congenitally missing teeth, impactions, ectopic eruption, supernumerary teeth, dilacerations, microdontia, and any other unusual finding that can be assessed with OPG.
malabaricus are not functional for prey grinding or dilaceration (Menin and Mimura, 1991), and the oral apparatus favor the ingestion of the whole preys, avoiding their escape (Moraes and Barbola, 1995).
The following factors are known to play role in im- paction of maxillary canine: (a) tooth size-arch length discrepancies (b) prolonged retention or early loss of the deciduous canine (c) abnormal position of the tooth bud (d) the presence of an alveolar cleft (e) ankylosis (f) cystic or neoplastic formation(g) dilaceration of the root (h) iatrogenic origin and (i) idiopathic condition with no apparent cause.
Supernumerary teeth may cause the delayed or impaired eruption of succedaneous teeth (26-52%), displacement or rotation of permanent teeth (28-63%), crowding, abnormal diastema or premature space closure, dilaceration or abnormal root development of permanent teeth, cyst formation (4-9%), or eruption into nasal cavity(Mitchell L, 1989).
dilaceration of the permanent maxillary incisor--22% resulted from trauma to the deciduous predecessor and the remaining 71% were probably developmental in origin (11)
6) With an overall prevalence of 41%, (11) these developmental disturbances include white or yellow-brown enamel discoloration with or without enamel hypoplasia, crown-root dilaceration, odontoma, root duplication or angulation, arrest of root development, germ sequestration and eruption disturbances.
An unusual case of multiple talon cusps affecting the maxillary central incisors and the canines bilaterally together with other dental abnormalities viz dens invaginatus affecting the maxillary lateral incisors, microdontia, short roots, reduced alveolar bone height, dilaceration of the described posterior teeth, anterior open bite and bilateral posterior cross bite in a 35 year old male.
The FDP, depending on the dilacerations and extension of the lesions, could be either sutured or grafted [6, 7].