文章基本信息

标题：Fourier Analysis of Dental Arch Morphology in South Australian Twins
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作者：KAZUTAKA KASAI ; LINDSAY CLEM RICHARDS ; GRANT CLEMENT TOWNSEND 等
期刊名称：Anthropological Science
印刷版ISSN：0918-7960
电子版ISSN：1348-8570
出版年度：1995
卷号：103
期号：1
页码：39-48
DOI：10.1537/ase.103.39
语种：English
出版社：The Anthropological Society of Nippon
摘要：Our aims were to assess the suitability of Fourier harmonics in describing dental arch form in South Australian twins and to estimate the contribution of genetic factors to observed variability. Dental casts of 37 monozygous (MZ) and 19 dizygous (DZ) twin pairs were selected, all subjects being male Caucasians with minimal dental crowding and no history of orthodontic treatment. There were no significant differences between the groups in any of the Fourier co-efficients. In the variance of differences between twins the constant value a₀ and first amplitude had significant genetic variances at the level of 5% or less. The highest correlations within MZ pairs (r>0.72) were for a₀, representing arch size, and for the first and second Fourier amplitudes (amp₁ and amp₂), representing the arch depth/arch breadth ratio and the relative taper of the arch respectively, in both the maxillary and mandibular arches. The results of this study confirm that the Fourier method provides an accurate, reproducible method for describing dental arch size and shape, and suggest that genetic factors contribute mainly to the variation in arch size and to arch depth/arch breadth ratio rather than to other aspects of dental arch morphology.
关键词：fourier analysis;dental arch;Australian twins;intraclass correlation;heritability