Re: Bridge - one year on and still can't bite on it!
Your dentist should check the bite and make sure the bridge is fitting well. Since the bridge is cemented on with temporary cement, the dentist will most likely remove the bridge and take an x-ray.
If the bridge does not fit on the teeth properly, it's not uncommon to feel pain in a tooth or teeth. This can be caused by an incorrect bite, placing too much pressure on a particular area, or it can be caused by the margins not being sealed when the bridge is placed. From what you've written, it sounds more like the bridge is not seated properly and the margin is not closed. Either that, or some of the temporary cement has washed away causing the margin not to be sealed.
The dentist will remove the bridge, clean the area, and check the teeth for any signs of decay, fracture, or abcess. If there are no signs of decay, tooth fracture, or abcess, the dentist will recement the bridge.