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我们选用杂色家兔4只,模拟临床治疗四环素牙的30%双氧水外漂白法,进行动物实验,观察兔牙髓组织病理学改变。实验一、目的:观察治疗次数对牙髓组织的刺激性影响。四只兔子的上前牙(?)隔湿清洁干燥后,小棉片浸透30%双氧水外敷牙唇面,250W 红外线灯照射20分钟,热烙后去除棉片,2%NaF 液涂布,氦氖激光照射10分钟(波长6328(?),功率8～12W,距离1m),1次/日。1号兔实验1次,2号兔3次,3号兔7次,4号
We selected four variegated rabbits to simulate the clinical treatment of tetracycline teeth 30% hydrogen peroxide bleaching method for animal experiments to observe the pathological changes of rabbit pulp tissue. First, the purpose: To observe the number of treatment on the pulp tissue irritation. Four rabbits on the anterior teeth (?) Moisturizing clean and dry, small cotton sheet soaked 30% hydrogen peroxide topical lip surface, 250W infrared light irradiation for 20 minutes, after hot deburring removal of cotton, 2% NaF coating, helium Ne laser irradiation for 10 minutes (wavelength 6328 (?), Power 8 ~ 12W, distance 1m), 1 time / day. 1 rabbit experiment 1, rabbit 2 3, rabbit 3 7, 4