Organisms that never possessed teeth can also be described as edentulous, such as members of the former zoological classification order of Edentata, which included anteaters and sloths, all of which possess no anterior teeth and either no or poorly developed posterior teeth. For example, a scientific study may include a partially edentulous group and a healthy dentate control group. Persons who have lost teeth are (either partially or completely) edentulous ( edentate), whereas those who have not lost teeth can be called dentate by comparison. Loss of some teeth is called partial edentulism, whereas loss of all teeth is called complete edentulism. This case of partial edentulism is the result of periodontal disease, as is suggested by the substantial bone loss around the two remaining teeth.Įdentulism or toothlessness is the condition of being toothless to at least some degree in organisms (such as humans) that naturally have teeth (dentition), it is the result of tooth loss. This X-ray film displays two lone-standing teeth, #21 and #22, as the remnants of a once full complement of 16 lower teeth.
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