Usually, there are many reasons for swollen and painful upper gums, usually gingivitis, periodontitis, tooth decay, food impaction and so on.
1. Gingivitis, periodontitis: generally due to poor oral hygiene, resulting in the accumulation of plaque, calculus, stimulation of the gums to form oral inflammation, inflammation aggravated pain will be more pronounced.
2. Tooth decay: If tooth decay is not treated in time, pulpitis will be formed, which will injure the pulp nerve and cause swelling and pain in the upper gums.
3. Food impaction: If the gap between the teeth is relatively large or the edge of the denture does not fit, eating is easy to cause food impaction, which will also cause inflammation over time, resulting in upper gum pain.
It should be noted that the presence of the above symptoms, should be timely consultation, clear cause, under the guidance of the doctor to deal with.