odontoptosis

o·don·top·to·sis

(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]