I have a small hole on gum where the lower jaw ends at right side..or i can say that gum has skipped from tooth at end of lower jaw.plesa help me.

These types: These types of situations require a personal clinical examination by a dentist in order to evaluate and diagnose your situation. Since we can't actually see what you are describing, it makes no sense to even give you a list of possibilities.

I can' the lip you..: ..but your Dentist can. Gum damage should be evaluated immediately to determine specific cause. Please call your Dentist.

Simple solution: See a dentist for examination x-rays and treatment. Dental and gums problems are never any fun, but the good news is that most of them can be easily prevented.