Sexual dimorphism of canine teeth of small dogs.

摘要: Abstract Sex-associated morphological characteristics were shown in the permanent canine teeth of dogs. Crowns and roots respectively about 23 per cent 40 longer, 26 50 wider males. The smaller crown: root ratio males together with greater width indicate a dimorphism tooth anchorage mechanism. Ratios widths various regions showed that male dogs not only larger but, because their expanded midroot width, different contour to those females. differences size far exceeded general statural difference 6 expected between sexes. Evidence from other sources suggests these may be due direct effect circulating sex hormones on development.