经 15例正畸治疗成功后的错合患者 ,利用弹基托材料所具有的隐蔽性 ,制作活动保持器 2 1件 ,经过 1.5～ 2 .0年临床观察 ,效果满意。1　材料和制法一般情况 :1在门诊经正畸治疗成功后 ,患者自愿接受隐形活动保持器者 15例 ,共 2 1件 ,男 6例 ,女 9例 ,年龄 19～ 3 5岁 ;2根据不 After the successful treatment of 15 cases of orthodontic patients with misdiagnosis, the use of the base material has the concealment of the hysteresis, making activity holder 21, after 1.5 ~ 2.0 years of clinical observation, the effect is satisfactory. 1 Materials and methods of preparation General situation: 1 After the orthodontic treatment in the outpatient clinic, 15 cases of patients who voluntarily accepted invisible activity holder, a total of 21 cases, 6 males and 9 females, aged 19 to 35 years; 2 According to no