There could be many reasons like it’s an old bridge ,it’s fitting gets loosened or not cemented well . Go for the checkup.

Proper history is required n how old is your bridge.clinical examination and x-ray must be done.May be this pain is due to high occlusal points.

Hello Sir, Welcome to Practo You can change the bridge which is the best option to get rid of pain during Chewing. Tooth colored bridges are available which will look like natural teeth and they have more strength than metal bridge. May be your metal bridge is old and that is why it is not working properly. Visit a dentist soon and get it checked properly. Wish you good health and happiness Keep me updated with the improvements Regards

Physical examination with a Dentist can only help you DEAR friend. u have to visit a dentist . it can b easily resolved.

The bridge on your right teeth need replacement or may need to be trimmed so as to get set in occlusion with other teeth. Visit a dentist and do the needful.

It's likely that either your bridge cemented is loose or there could be reinfection under the capped teeth...an x-ray and clinical examination would help your dentist advise you of the solution.