This is a difficult question to answer without seeing your mouth. Many problems that you are describing can be due to the way your teeth bite and function together. The fact that your bridge loosened due to an oat meal biscuit is purely due to the last straw scenario – other factors loosened the bridge prior to your snack. A stronger cement will not solve the problem. The dentist may well have tried their best with your old bridge but it sounds likely that a new bridge is required – perhaps with a new design to make it last even longer than 6 years.

There are different types of filling material that have different strengths , ranging from white ( composite) fillings to gold fillings. Although you appear to have had minimal problems in the past your mouth is by no means in a static position – as life goes on your teeth wear and your bite changes from year to year. This may mean you have reached a point where your whole mouth needs to be looked at rather than so called ” single tooth ” dentistry carried out ( I realise one of your problems is a bridge but the same whole mouth idea applies).

My best advice would be to return to your dentist , voice your concerns and see what options they come up with.

Regards,