Hello Sir , Welcome to Practo This is your Dentist - Sir this problems may aries if there is any problem in the bridge or the lower tight might be mobile. or the bridge itself is loose , try to be specific upon your history . Did you feel the same when it was placed ? Or you are encountering it recently ? Let me know Thanks Alot. Dr Mousam Chattopadhyay.

It's normal Avoid hard food & if the prob continues then just go for a check up

It's not normal.You need to  get  yourself  checked

Hello Welcome to practo If the bridge is newly placed the sound thing might happen , until you don't have any pain it is fine as u have mentioned that high points has been removed There is a new thing inside your mouth just like wearing a new shoe which gives problem initially Once u r use to the bridge placed in ur mouth it will be fine Nothing to worry about it

If there are no high points left and the bridge is firmly placed... then the sound is normal because it is new but if the problem still persists visit ur dentist