美国对于七岁看正畸医生的观点

First Visit Consultation By Age 7

"When you had braces, orthodontists waited until things got as severe as they could, and then they tried to solve them. By seeing the kids at age 7, while the kids may not need any treatment, the orthodontist has the opportunity to intercept any developing problems and resolve them before they get so severe they require extractions or even surgery. By seeing the orthodontist early, you have the chance to keep many more treatment options open during the usual adolescent treatment times."

The main point to stress is that there are situations that, if left untreated, may require longer treatment, more invasive treatment (extractions, gingival grafting, etc), and especially surgery.  If you have a good orthodontist you can refer to, that will only treat early in cases where there is tangible benefit, then you can honestly tell the patient to just go get the free evaluation so that they can avoid unnecessary complications.  The main issues are crossbites and Class IIIs.  Those are problems that should be addressed early if at all possible.

原文大意：虽然有些孩子7岁检查时可能没有需要治疗的问题，但是至少给医生和患者一个早期发现问题和早期干预的机会。如果有一个好的矫正医生早期发现（发育或咬合的问题），总比自行发展到严重时（需要拔牙，牙龈甚至颌骨的手术）要多一个保守治疗的机会吧。

一般牙医同道，如果你身边有好的正畸医生，请诚恳地告知小患者去做检查，从而可能避免不必要的并发症。密切关注反合和III类错颌。这样的问题尽可能尽早处理。