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Crown Size-Arch Space Relationships During Human Prenatal Dental DevelopmentCenter for Human Growth and Development and The Department of Anatomy. The University of Michigan School of Medicine, Ann Arbor, MI 48109 USA
Center for Human Growth and Development and The Department of Anatomy. The University of Michigan School of Medicine, Ann Arbor, MI 48109 USA
Center for Human Growth and Development and The Department of Anatomy. The University of Michigan School of Medicine, Ann Arbor, MI 48109 USA
Center for Human Growth and Development and The Department of Anatomy. The University of Michigan School of Medicine, Ann Arbor, MI 48109 USA As shown in composite reconstructions made from optically-projected measurements of 10µ 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. Despite an eight-fold increase in crown dimensions, interdental spacing remains approximately constant after 150 mm CRL, suggesting that the tooth organs or the periodontal membranes are able to maintain spacing, into the third trimester.
Journal of Dental Research, Vol. 58, No. 2,
554-559 (1979) This article has been cited by other articles:
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