Prevention of Quad Helix soft-tissue irritation.
Kim
Seong-Hun
SH
Department of Orthodontics, Kyung-Hee University, School of Dental Medicine, Hoe-Ki Dong # 1, Dongdaemun Gu, Seoul 130-702, Korea. bravortho@hanmail.net
Park
Young-Guk
YG
D000202:Activator Appliances / Q000009:adverse effects; D020724:Elastomers; D006801:Humans; D009061:Mouth Mucosa / Q000293:injuries; D016382:Orthodontic Appliance Design; D009969:Orthodontic Wires; D010155:Palatal Expansion Technique / Q000295:instrumentation*; D013499:Surface Properties
D020724:Elastomers