My question is to know, if hepatitis b chronic can be definitilly treated ' untill now the patient does not have yet liver damage.?

Not difinitive, yet. Current treatment for chronic hepatitisb is decent/good and is improving as we speak, but no difinitive treatment exists at this time. Since you are young/healthy without evidence of liver damage, your chance of a good out come is good, but not 100%. There are few options for treatment. Consult your doc for eval/discuss to see which is best for your situation. Good luck.