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儿童第一恒磨牙萌出时间最早 ,患龋机会最高。常因治疗不及时导致残冠残根 ,对合牙伸长 ;邻牙移位 ;食物嵌塞 ;既是修复也不能维持咀嚼功能。根据牙胚发育生理特点 ,选择最佳时间拔除龋坏第一恒磨牙。使第二磨牙在第一磨牙位置萌出取而代之 ,并用矫治方法消除第二磨牙与第二双
Children's first permanent molars eruption time first, the highest chance of suffering from caries. Often due to treatment is not timely led to the residual crown of the crown, on the joint elongation; adjacent teeth shift; food impaction; both repair can not maintain chewing function. According to the physiological characteristics of tooth germ development, choose the best time to remove carious first permanent molars. So that the second molars in the first molar position eruption replaced, and with correction method to eliminate the second molar and the second double