What is the common name for the upper incisors of the elephant?
Elephant falls out at the early 40s. The sixth (and usually final) set must last the elephant the rest of its life. Elephant teeth have loop-shaped dental ridges, which are thicker and more diamond-shaped in African elephants. The tusks of an elephant are modified second incisors in the upper jaw. They replace deciduous milk teeth at 6–12 months of age and grow continuously at about a year. A newly developed tusk has a smooth enamel cap that eventually wears off. The dentine is known as ivory and its cross-section consists of crisscrossing line patterns, known as "engine turning", which create diamond-shaped
Shovel-shaped incisors Shovel-shaped incisors Shovel-shaped incisors (or, more simply, shovel incisors) are incisors whose lingual surfaces are scooped as a consequence of lingual marginal ridges, crown curvature or basal tubercles, either alone or in combination. Shovel-shaped incisors are relatively common in Central, East and Southeast Asians; the Eskimo and Aleut peoples of Northeast Asian and North America (including but not limited to the Inuit peoples of eastern Alaska, arctic Canada and Greenland); and Aboriginal North and South Americans. In Europeans and Africans, shovel-shaped upper incisors are uncommon or not present. There is a spectrum of the degree of shoveled-ness, ranging on a