I'm going in for a consultation on Wednesday for botox treatment to help reduce my jaw clenching. I have been using a bite splint at night which interupts my sleep. The main concern is my clenching during the day which once I realize its happening, I correct it, but it happens again shortly after. I also have TMJ which I would like to try botox first before actual surgery. What is the least amount of units I can get for treatment? I would like to try little before too much. Thanks