Monday, December 23, 2013

Ask.Dentist牙牙学医:How to replace my missing teeth? 牙齿没了怎么办?

Why do I need to replace my missing teeth?
Our teeth have many functions, such as to chew, to speak, to keep the facial muscles and tissue in a proper position, for better appearance, to smile, to socialize with other peoples and to keep the other teeth from shifting.




What are the choices to replace my missing teeth?
There are a many ways to replace that missing tooth or teeth. The most popular are listed below:

Partial denture (false teeth) 
A partial denture can be used to replace one or more missing teeth. It can be:
Plastic base,  Metal base


    plastic base partial denture

Metal base partial denture



Complete full denture (false teeth)
Full (or complete) dentures are needed when you have no teeth left in your upper or lower jaw. They are usually made of a plastic plate with plastic teeth.

Bridge
If only one or two teeth are missing, your dentist may recommend a bridge. He or she will attach a false tooth (or teeth) to your natural teeth on either side or occasionally on only one side of the gap.

Bridges are made of porcelain and/or metal. There are many bridge designs. The natural teeth on either side of the space are specially prepared for the crowns to fit on top. These crowns are permanently attached to a false tooth in the centre




Implant
A dental implant is a metal rod (titanium or titanium alloy) that is placed in your jawbone to hold a false tooth (or teeth) in place. Over several months, your jawbone fuses with the metal rod.



Implant Supported Dentures or bridges
Dentures or bridge can be screwed or clipped onto the implant. This help to retain the denture in place, and reduce the discomfort of loose denture.






Which is better? What are the good and bad for the choices?














牙齿掉了后为什么我需要做假牙替代?

我们的牙齿有很多功能,如咀嚼,说话,外观(美观),微笑,社交,并防止其他牙齿移位。没了牙齿,这些功能都会有问题。
 
没了牙齿,我应该怎么办?
随着科技的先进,牙科的不断发展,我们除了传统的假牙以外,还有许多方法能来替代我们没了的牙齿:

可摘局部义齿/局部活动假牙(假牙)
一个局部义齿/假牙,可以用来替换一个或多个缺失的牙齿。它可以是:
塑料制,金属制


塑料制局部假牙
 

金属制局部假牙


全口义齿/假牙(假牙)
当你上颌或下颌全部的牙齿都掉光了,全口假牙可以帮助您补上全部缺失的牙齿。它是传统及受广泛使用的假牙。它通常是塑料制成的塑料牙。


 

牙桥
牙桥是利用缺牙相邻两侧的好牙,把假牙固定在上面,在镶牙时,先要将缺牙两侧相邻的好牙进行磨改,作为基牙,然后在其上面套上一个牙套,再将两侧连接起来,中间镶上假牙,通过粘固剂固定在两侧的好牙上,像搭桥一样,所以被称为固定桥/牙桥。

 


种牙/植牙
种牙是通过医学方式,将与人体骨质兼容性高的纯钛金属经过精密的设计,制造成类似牙根的圆柱体或其他形状,以外科小手术的方式植入缺牙区的牙槽骨内,1—3个月后,当人工牙根与牙槽骨密合后,再在人工牙根上制作牙冠。


 

种植体支持的义齿或桥梁
假牙或牙桥可以通过种牙提供支撑,有助于保持义齿稳定性,并减少义齿松动的不适。这方法适合经常因为假牙松动而不断更换假牙的人士


 



我应该选哪个?这些选择的有哪些好与不好?