The stainless steel crown, welded sheath, and wire loop for posterior space maintenance.
D003442:Crowns; D003818:Dentition, Mixed; D006801:Humans; D009967:Orthodontic Appliances; D013027:Space Maintenance, Orthodontic / Q000295:instrumentation / Q000379:methods*; D013193:Stainless Steel; D014094:Tooth, Deciduous
D013193:Stainless Steel