Diastema


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diastema

[‚dī·ə′stē·mə]
(anatomy)
A space between two types of teeth, as between an incisor and premolar.
(cell and molecular biology)
Modified cytoplasm of the equatorial plane prior to cell division.

Diastema

 

an excessive interval or space between teeth in mammals, usually caused by reduction of part of the teeth. In most herbivorous animals the cuspids and sometimes the incisors are reduced. Similar diastemata occur in the upper and lower jaws of rodents, horses, kangaroos, and other animals. In ruminants, diastema occurs only in the lower jaw. In carnivores it takes place without reduction of teeth. One diastema occurs in front of the fangs of the upper jaw (providing space for the lower fangs), and another is behind the lower fangs (allowing room for the upper fangs during biting). In closing the jaws the fangs nest and form a solid closure, preventing lateral motion of the jaw and aiding in the holding of prey.

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Direct resin composite restorations for fractured maxillary teeth and diastema closure: A 7 years retrospective evaluation of survival and influencing factors.
Every patient that met the inclusion criteria and provided consent or whom consent was provided for underwent an oral examination and the measurement of his or her occlusal characteristics (including overjet, overbite, maxillary midline diastema, anterior crossbite, posterior crossbite, incisor irregularity, and Angle's molar classification).
Maxillary midline diastema has been defined as a space or gap between two central incisors (1) and it may compromise smile attractiveness and dentofacial harmony (2).
Mesiodens can cause a variety of complications, mainly when unerupted teeth affect the maxillary incisors, root resorption, axial rotation or displacement, diastema and dentigerous cyst formation.
1999) Gene expression patterns associated with suppression of odontogenesis in mouse and vole diastema regions.
The other features include midline diastema, conical shaped 11, 21 (Figure 10).
Habia presencia de malposiciones dentarias en 17, 14, 24, 27, 36 y 46 y diastemas entre 32-33-34 y 41-42-43-44.
La anomalias dentarias son problemas clinicos que pueden contribuir a problemas esteticos, maloclusiones, retraso en la erupcion de los sucesores permanentes, la formacion de diastema y la susceptibilidad de caries debido a la presencia de fisuras.
A partir de su analisis se interpretaron tres acciones basicas involucradas en el procesamiento: 1) Cuereo: reconocido a partir de cortes ubicados en elementos con poca masa muscular (sector anterior de la mandibula, paralelos al diastema, paralelos a los molariformes, sector distal de la diafisis de tibia, metapodios y falanges).
La etimologia del termino diastematico lleva al concepto de diastema, que designa el intervalo entre dos tonos, perceptible sobre el canon (monocordio) como diferencia entre las secciones de cuerda que resuenan sucesivamente.
Entre as alteracoes do frenulo da lingua estao a anquiloglossia ou lingua presa, que pode ser caracterizada com a dobra da ponta da lingua para baixo ao projetar-se para fora da boca, formando um coracao em seu apice, o diastema entre os incisivos centrais inferiores, a abrasao ou corte na face inferior da lingua e a alteracao da degluticao e suas consequencias na alimentacao, principalmente na fase de amamentacao [4], pois o bebe que tem o frenulo da lingua alterado pode ter problemas na pega nao conseguindo sugar o peito da mae, interferindo inclusive no ganho de peso [4,5].