Composite restorations are very good and rarely fail. Alternatively please ask your dentist if he can give you an indirect restoration like an inlay or an only, these are lab fabricated and can have a longer lifespan in situations where regular fillings have failed. Indirect restorations are usually more expensive though but last for very long.
Next Steps
please contact your family dentist to further diagnose and treat the problem.
Health Tips
If your regular dentist is unable to help, look for an endodontist or a prosthodontist as they specialise in providing such types of restorations