Levine R S
Health Education Authority, London.
Br Dent J. 1999 Feb 13;186(3):108. doi: 10.1038/sj.bdj.4800035.
Dummy sucking usually ceases before permanent teeth erupt but digit sucking may persist beyond this stage producing a permanent disturbance and should be discouraged.
假吸通常在恒牙萌出前停止，但吮指可能会持续到这个阶段之后，造成永久性的不良影响，因此应该加以劝阻。
