Distance Gradient in Prenatal Dental Development
نویسندگان
چکیده
منابع مشابه
Distance gradient in prenatal dental development.
In postnatal dental development, and in crown size itself, there is a demonstrable "distance gradient" so that teeth closer together within a jaw quadrant show higher correlations. Thus, adjacent teeth exhibit systematically higher commonality in both tooth formation and crown size than more remote teeth in the same quadrant, despite absolute differences in formation (calcification, root elonga...
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Sequence polymorphism is a well-known phenomenon of postnatal dental development. Individual sequence polymorphisms include the dm2-c/c-dm2* orders of eruption in the deciduous dentitions, and the M2-P2/P2-M2 and C-M2/M2-C eruption sequences in the permanent dentition (S. M. GARN and A. B. LEWIS, J Dent Res 36:992-995, 1957; S. M. GARN and A. B. LEWIS, in BROTHWELL, D.R. (ed) Dental Anthropolog...
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The chronology of human development involves complex systems of sequence or order that can scarcely be hinted at in the standard texts. Anatomy students learn one order of ossification for the carpal bones, beginning with the capitate and hamate, and proceeding through the triquetral, lunate, and the multangulars. Dental students learn the median order of tooth eruption as first molar (Ml), cen...
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As shown in composite reconstructions made from optically-projected measurements of 10mu frontal maxillofacial sections of 20 histologically normal fetuses and embryos in the 70-255 mm CRL range, individual differences in relative tooth size and interdental spacing are evident by 10.5-11 weeks of gestation, and age-corrected crown-size correlations (r=0.40) approximate those in postnatal life. ...
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ژورنال
عنوان ژورنال: Journal of Dental Research
سال: 1971
ISSN: 0022-0345,1544-0591
DOI: 10.1177/00220345710500034501