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n. pl. di·a·ste·ma·ta (-mə-tə)
A gap or space between two teeth.

[Late Latin diastēma, interval, from Greek, from diistanai, diastē-, to separate; see diastasis.]

di′a·ste·mat′ic (-stə-măt′ĭk) adj.


n, pl -mata (-mətə)
1. (Pathology) an abnormal space, fissure, or cleft in a bodily organ or part
2. (Dentistry) a gap between the teeth
[C19: New Latin, from Greek: gap, from diistanai to separate; see diastasis]


(ˌdaɪ əˈsti mə)

n., pl. -ma•ta (-mə tə)
a gap between two adjacent teeth.
[1350–1400; Middle English < Late Latin < Greek diástēma interval, derivative (with -ma n. suffix of result) of diïstánai (see diastase)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diastema - a gap or vacant space between two teeth
opening, gap - an open or empty space in or between things; "there was a small opening between the trees"; "the explosion made a gap in the wall"
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References in periodicals archive ?
It takes into account ten components to which different weights are attributed: Crowding in incisal segments, incisal segment spacing, front maxillary irregularity and back mandibular irregularity, with weight 1; front maxillary prominence, with weight 2; incisal diastema and anteroposterior molar ratio, with weight 3; front mandibular sparing and vertical anterior open bite, with weight 4; and incisor teeth, canines and premolars lost, with weight 6.
Ptycta aaroni KF651837 KF499151 Ptycta apicantha KF651858 KF499172 Ptycta diadela KF651853 KF499167 Ptycta diastema KF651845 KF499159 Ptycta distinguenda KF651861 KF499175 Ptycta frogneri KF651913 KF499227 Ptycta giffardi KF651846 KF499160 Ptycta haleakalae KF651884 KF499198 Ptycta hardyi KF651863 KF499177 Ptycta johnsoni KF651899 KF499213 Ptycta kauaiensis KF651891 KF499205 Ptycta leucothorax KF651872 KF499186 Ptycta lobophora KF651876 KF499190 Ptycta maculifrons KF651860 KF499174 Ptycta microglena KF651883 -- Ptycta molokaiensis KF651851 KF499165 Ptycta monticola KF651892 KF499201 Ptycta palikea KF651895 KF499209 Ptycta pikeloi KF651849 KF499163 Ptycta placophora KF651840 KF499153 Ptycta sp.
Oral manifestations which may be seen include malocclusion, labiogingival adherences, gingival hypertrophy, accessory labiogingival frenula, serrated incisal margins, dental transposition, diastema, conical teeth, enamel hypoplasia, hypodontia, and teeth erupted or exfoliated prematurely, which were present in our patient too.
In this study the cases of fractured anterior teeth and diastema closure for esthetic purpose were also included and the good success rate of the study (82.
The characteristics of malocclusion evaluated in NHANES III include the irregularity index, which is a measure of incisor alignment (13), the prevalence of a midline diastema greater than 2 mm, and the prevalence of posterior cross-bite, overjet, and overbite/open bite.
Condylobasal length (CL) and length of upper diastema (LUD) were also measured.
There are gaps between all the premolars and there is even a short diastema between the p4 and the m1 and a longer one between the canine and the p1.
The broken symphysis is thick and slightly constricted at the diastema level.
La especie Hemiauchenia vera Matthew, 1909 es ligeramente mas pequena que Pleiolama mckennai Webb & Meachen, 2004, pero presenta una larga diastema anterior a los molares superiores (44 mm) y una amplia sinfisis (36 mm de ancho entre incisivos).
11, 17) En este caso, el mesiodens estaba causando un abultamiento en la region anterior del paladar, dificultando la alimentacion y causando un ligero diastema entre los incisivos centrales permanentes.
This can be explained by the fact that patients, after 3 months of treatment, are still using expander braces, and a considerable diastema between the incisors still remains.