hello i have a dental cleaning soon  they may do fillings  too that day they are going use  oral sedation and laughing gas and  a  blue papoose board  with head straps  its a safety requirement,  i do have autism and special needs,  i have  sensory issues,  will the gas help , will the oral sedation calm me there using liquid versed , will papoose board be safe  any kind advice...........?