Should i wear my splint after having a tmj surgery?

Probably, yes: It depends on what operation you have or had. With arthroscopy, you definitely need to wear your splint. With an arthroplasty, depending on whether or not the disc is removed or tied back, your splint may need to be adjusted. Your TMJ surgeon should advise you on whether or not to wear your splint or have it adjusted after TMJ surgery. If it's improperly adjusted, it may cause more harm than good.

Unclear: There are too many variables to answer that question. It depends on what type of splint you have (there are dozens of different types) & what type of TMJ surgery you're going to have. There's no "one size fits all" answer to this question. Only your surgeon (perhaps in consultation with your dentist) can answer that question for you specifically. You may need a different type of splint afterwards.

Depends: I would want to get the definitive answer from the oral surgeon or surgeon who did the TMJ surgery. Let him/her know whether the splint was working or not, which could be counter productive to healing.

Maybe: I agree with the other 3 answers. The best answer would be from your surgeon. Sometimes yes, sometimes no.