IM GETTING BRACES TOP AND BOTTOM TOMMOROW & HE SAID ALL OF IT IS GONNA LAST 45 MINUITS HOW DO I SWALLOW MY SPIT/SALIVA?? IT WILL BE HARD WITH THAT THING IN MY MOUTH HLDING IT OPEN?? ALSO DO THEY TURN LIGHTS OF AND DO I WERE GLASSES THE DENTIST GLASSES? thnkyouu xxx