以往大家的传统观念均是需要等待恒齿全部换齐才能矫齿，即约在12岁左右的时候或骨骼生定才开始，但近年更多家长留意到在7岁换牙期开始，虽然并不是每个小朋友都需要进行早期矫齿疗程， ...

ROME, Jan. 9 (Xinhua) -- Italian Prime Minister Giorgia Meloni outlined plans to reform the county's electoral process to elect a government head and pledged further tax cuts for the middle-class in a ...