A nickel titanium space regainer-retainer.
Dimond
H D
HD
D002675:Child, Preschool; D006801:Humans; D008334:Mandible; D008963:Molar; D016382:Orthodontic Appliance Design; D013027:Space Maintenance, Orthodontic / Q000295:instrumentation*; D016388:Tooth Loss / Q000534:rehabilitation; D014094:Tooth, Deciduous