en.allexperts.com/q/Dentistry-966/partial-dentures-vs-fixed.htmWhen someone takes off the teeth for some reason the person should be compensated for the taken off teeth by industrial one permanent or movable one, this industrial permanent teeth called a bridge that have the same in both shape and design of the bridge on the river or between Hills or in the way of pedestrians walking by or pass through vehicles, the same principle of the bridge of the mouth that food pass on it during chewing and cutters.

The bridge usually consists of the following parts:
1- Pillars and it is teeth that beside the taken off teeth, which bear the weight of the bridge based upon, That is why it must be strong and solid, and the number depending of the number of teeth taken off, if only one taken off then it needs two pillars one from each side, but if the teeth were taken off are two or more then may remain two or more depending on the location of the teeth and format and location of teeth neighbors.
2- Dummy and it is the place of the taken off teeth and it is connected and sticking to the neighbor teeth.
But the movable fixing is usually made of plastic sheeting from a material that named akreial. Or from metal Sheet or made of metal mixed with cobalt chrome, and used by the person so that he can control to get it in or out of the mouth. For further details on the article due to the need to compensate for the taken off teeth of the deposed FP articles.
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