I've noticed that my daughter's teeth aren't growing straight. Her teeth are too big. Theredoesn't seem to be enough space for them.

　　我发现我女儿的牙齿长的不正，牙齿也太大了，好像空隙不好。

　　How old is your daughter?

　　你女儿有多大了？

　　She's eight years old and I'm very worried that she's going to have crowded (crooked) teethlike mine.

　　她八岁，我担心她会跟我一样长寄生齿。

　　Yes, malocclusion is very often related to heredity.

　　对的， 牙合不正通常与遗传有关。

　　What's malocclusion?

　　错颌畸形是怎么回是？

　　Occlusion refers to the way that the teeth fit together, and their position in the mouth. Theword malocclusion means that the teeth don't fit together properly.

　　咬合指的是上，下牙排牙齿合到一起时位置合适，错颌畸形指的是咬合位置不合适。

　　Make an appointment for your daughter so that I can examine her and refer her to anorthodontist if I think that it's necessary.

　　给你女儿预约个时间，这样我可以给她检查，必要时我可以给他介绍一位正畸齿科医生。

　　Are there other causes for malocclusion?

　　错颌畸形还有别的什么别的原因吗？

　　Malocclusion can be related to habits such as thumb sucking or premature loss of thedeciduous (milk, baby) teeth.

　　错颌畸形与一些习惯如允吸大拇指乳牙过早脱落有关。

　　It's very important to make a space maintainer if the second deciduous molar is lost too soon.

　　假如第二颗乳牙过早脱落，那摸装上间隙保持器是件要紧的事。

　　This will help to prevent a malocclusion from developing.

　　这样有助于防止错颌畸形继续发展。

　　Most of the time, a malocclusion is caused by the fact that the teeth are too large in relation tothe size of the jaws

　　在大多数情况下，错颌畸形是由于牙齿比起上，下颌的大小来说大了一些。

　　Can you extract the teeth, Doctor?

　　拔了牙不行吗？

　　Extracting deciduous teeth may help temporarily, but it's usually necessary to remove someof the adult (permanent) teeth to make enough space for the remaining teeth. Thenorthodontic appliances (braces) are used to move the teeth into a normal position.

　　拔掉乳呀可能暂时有帮助，但是通常有时需要拔掉几颗恒牙，让留下来的牙齿有足够的空间，然后用绞型装置将牙齿移到正确的位置上。