右上第一恒磨牙过早萌出一例广东省汕头市第三人民院（５１５０７３）唐钟辉患儿陈×、女、四周岁，父母代述近月来右上后牙肿痛。检查患儿全身情况良好，营养发育正常。检查口腔局部情况２０个乳牙萌出正常，但于远中又萌出一新牙，解剖形态同右上第一恒磨牙，牙周红肿、... The first right molars premature eruption of a case of the Third People's Hospital of Shantou City, Guangdong Province (515073) Tang Zhonghui children with children ×, female, four years old, the parents on behalf of the right upper back in the last month, after a toothache. Check the general condition of children with good nutrition and normal development. Check the local oral conditions 20 teeth eruption normal, but in the distance and a new eruption of teeth, anatomical morphology with the first right molars, periodontal swelling, ...