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对５０例８～２２岁的前牙错合（反、错位和拥挤）的病人采用活动性矫治器同时配用其他方法早期正畸治疗。矫正最短时间仅为３周，最长时间为１８～２０周，巩固治疗约需１年。年龄越小正畸所需时间越短，早期治疗效果较为理想。
50 patients aged 8 to 22 years old anterior teeth mismatch (anti, misplaced and crowded) patients with active appliances at the same time with other methods of early orthodontic treatment. The shortest correction time is only 3 weeks, the longest time is 18 to 20 weeks, consolidation therapy takes about 1 year. The younger the time required for orthodontics, early treatment is more satisfactory.