My Wife Had Her Teeth Cleaned In White Plains NY

my wife had her teeth cleaned in white plains NY and whatever the dentist used it left my wife's mouth with a HORRIBLE chemical odor that REEKS! If I kiss my wife her mouth saliva odor clings to my lips! even if I wash it I still can smell it. The odor is on her clothing, Pillows..... Its making me nauseous I HATE IT! She gets very upset when I tell her about the mouth odor she has ever since she got her mouth cleaned. Some how it does not bother her and she doesn't seem to smell it. She refuses to tell me what the dentist used for mouth cleaning. I'm very worried and I pray it wont harm her. Please help as to what this stinking stuff is. PLEASE!