Kolakowski D, Bailit H L
Am J Phys Anthropol. 1981 Mar;54(3):377-81. doi: 10.1002/ajpa.1330540311.
Factor-analytic studies of human tooth size routinely exhibit separate factors for the mesiodistal and buccolingual dimensions of anterior teeth but a single factor each for premolar and molar size. This observed independence within the anterior field is shown to be attributable to a much larger effect of environmental factors on the buccolingual vs. the mesiodistal diameters, a significant cause of which may be calculus accumulation hitherto unrecognized in the relevant literature. The heritability of dental dimensions is also discussed.
对人类牙齿大小的因素分析研究通常显示，前牙的近远中径和颊舌径分别有不同的因素，但前磨牙和磨牙大小各有一个单一因素。研究表明，在前牙区域观察到的这种独立性可归因于环境因素对颊舌径与近远中径的影响大得多，其中一个重要原因可能是牙结石堆积，而这在相关文献中迄今未被认识到。本文还讨论了牙齿尺寸的遗传力。
