For the past two weeks, my right jaw top and bottom is sore at gums/palate. dentist said i have some viral/bacterial infection. should i get myteeth cleaned by a dentist?

Varies: This can be several things. Usually gum disease is the most common cause of sore gums. Other less common things can be lichen planus, pemphigus, pemphigoid, trauma or irritation from a type of food/oral rinse. A good oral examination will be required. Consult an oral surgeon if you can.

Gum treatment: Although there are other possiblities. The main cause of sorenes of the gums where they touch the teeth is gum disease. If it has been 2 or more years since you had your teeth cleaned you may need a deep cleaning (root planing ) of your teeth.

Teeth sensitivity: The normal side effect of scaling and root planing, or deep clean, is teeth sensitivity. It should go away as you keep the teeth clean and the gingival reattachment occurs. However, if discomforts increase and prevent the oral hygiene effort, desensitizer such as gluma, potassium oxalate, and or Fluoride gel or paste can be applied to the area. Severe cases may required laser or Fluoride tray.

Need diagnosis: Need to find out what's causing pain before attempting treatment. Have your dentist refer you to periodontist to check gums for infection and endodontist to check for infection. You may also have to see an orthodontist to evaluate occlusion. If your dentist can't nail down the problem, you have to seek evaluation elsewhere.