EEG-based pain control mechanism and cognitive behavioral therapy for orthodontic pain control: a radomized controlled trial

INTERVENTION: A:Cognitive behavioral treatment: after The initial arch wires has placed, following throught the psycology therapy,Through cognitive restructuring to rebuit the correct attitube of patient by facing up pain in orthodontic; also using CBT melody and relaxing therapy to relax patient's whole body skeletal muscles; keep practicing at home after doctor's notice, finishing the assignments on time. Fill out the application of VAS and Anxiety status in time;B:Blank control : Regular doctor notice,after the initial arch wires placed, without any others process. Fill out the application of VAS and Anxiety status in time. ; CONDITION: Pain during orthodontic treatment PRIMARY OUTCOME: Cold pressor test (CPT); SECONDARY OUTCOME: Visual analog scale (VAS);State Anxiety Scale(SA‐I); INCLUSION CRITERIA: 1. aged 23 +5 years; 2. Right‐handed (according to the field of EEG analysis requires routine amalgamation); 3. The level of education is undergraduate and above; 4. The patients have medical background (in areas of general need for education background, level and living conditions for amalgamation); 5. Patient can understand the scale and complete it; 6. No history of neuropsychiatric disorders; 7. Non‐infectious diseases and / or systemic disease.