17 to 21 years is the age where you wisdom teeth
erupts. So its common to have slight pain
or discomfort associated with teething (eruption of teeth
now you should make out which teeth you have pain ,is it wisdom teeth, or adjacent 1st & second molar.
If it is wisdom teeth pain, you can wait and see for few days so that pain subsides by itself, mean while you can take a course of pain killers for few days. If the pain does not subside or the pain is from the other teeth you can get a OPG (full mouth x-ray
) done and consult a dentist
at the earliest.