I need a permanent crown for the implant installed by my periodontist. Do I need a specialist, or, will a general dentist be sufficient for this purpose?

I had two upper teeth and two lower teeth extracted by my orthodontist while I had braces on. I still have them on, but I am unhappy because my jaw has started hurting and feels like it goes back too far. My bottom lip is sunk in and my top lip comes out too far now. I want my mouth to be broader like it was. Can something be done to correct this. Why couldn't some other measure be taken instead of extractions to make room for crowded teeth. im 38 weekks pregeant and i lost a filling...Im not in any pain but is novacaine safe to take or should i wait tell after i have the baby sense im not in any pain.  more