Is my palatal expander causing me to have nerve damage as I now have pain when I bite whereas I didn't before?

Yes, if you wear it like a clear aligner (24/7 except when eating) you have a good chance of the tooth moving back to its original position. After the movement occurs you will have to either continue wearing the retainer every night or have your dentist fix the wire retainer so it is bonded back...

Not knowing your case and possible reason for braces (crowding, spacing, etc...) I believe you should be ok for another 3 days. If you believe any shifting has occurred let your orthodontist know of the "problem area" and he/she could possible make some adjustment to the retainer to address your...

You absolutely do NOT want to extract teeth. Extracting teeth will create far more space than you need to align your teeth and will dramatically affect facial appearance and constrict your smile. You may not want to solve your crowding with IPR either as you will probably require a significant...

Your problem is not an overly protrusive upper lip but rather a retruded lower jaw caused by upper front teeth that are tilted too far back. You do not need teeth extracted but you do need to have your upper front teeth torqued into proper position and then have your lower jaw brought forward....

It's very possible that a simple solution would work, provided the situation is really as you describe it.  An orthodontist told you differently, so I have to wonder, but it also sounds like he just gave you a routine time estimate for his full treatment case without really considering a...

Yes, it's extremely likely that you will relapse.  There are a lot of considerations, of course, like your age, your pretreatment condition, the design of your retainer.You'll regret it if you relapse, trust me.