What’s the reason why my tooth still hurts after three weeks of having a filling?

Fillings three weeks of hidden tooth pain may be due to secondary caries, food stimulation, fillings fillers and other factors.
1. Secondary caries: If the cavity is not cleaned up when filling the tooth, the phenomenon of secondary caries may occur, manifesting itself as a hidden pain in the tooth.
2. Food stimulation: If the patient consumes too cold or too hard food after filling, it will stimulate the gums and cause hidden pain.
3. High fillings: If the patient’s teeth have hidden pain, it may be due to high fillings or irritation caused by the filling material and other factors that lead to pain when biting the teeth.
In addition, it is important to note that if the patient suffers from pulpitis, gingivitis and other oral diseases, can lead to hidden pain in the teeth.