(ō'don-top-tō'sis, -tō-tō'sis), Downward movement of an upper tooth due to the loss of its lower antagonist(s). See also: supereruption. [odonto- + G. ptōsis, a falling]
o·don·top·to·sis
(ō'don-top-tō'sis, -tō-tō'sis) Downward movement of an upper tooth due to loss of its lower antagonist(s). See also: supereruption[odonto- + G. ptōsis, a falling]