[1]Department of Stomatology Hancheng People''s Hospital in Shaanxi Province Hancheng Shaanxi Province 715400;
[2]Department of Ophthalmology&Otorhinolaryngology Hancheng People''s Hospital in Shaanxi Province Hancheng Shaanxi Province 715400;
Orthodontic treatment; Heat-activated nickel-titanium arch wire; Inflammation; Bone destruction; Apoptosis;