A shoplifting case i want expunge it was in 1983 i had just turned 18 Criminal Records, Expungement

I want to now since this happen in 1983 i was 18 can i still use the 1st time offenders act i haven't done anything else since then i am 49 now it usually don't come up at all in back ground check but now we have to be fingerprinted to teach here in ga i don't want this to affect my ability from teaching or should i try and get it expunged i hope i can do something i have not did anything or been in any trouble at all since i was in high school i am 49 years old now so what should i do i do not want this to come up on my finger prints