title: SEM analysis of ultrasonically debonded acid-etched metal retainers in teeth.
mesh_terms: D000134:Acid Etching, Dental; D001840:Dental Bonding; D003777:Dental Prophylaxis / Q000295:instrumentation*; D012534:Dental Scaling / Q000295:instrumentation*; D003830:Denture, Partial, Fixed; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties; D014464:Ultrasonic Therapy / Q000295:instrumentation