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Bite or flight? Many people hate going to the dentist, but according to a new survey, the only thing that could be worse would be if you had to take a plane to get there. The survey, conducted by Expedia, finds that Americans find air travel more stressful than sitting in the dentist's chair or filing taxes. 55% said that flying is the leading cause of stress in their lives. People would rather fill a cavity than fill a seat in coach. A psychologist explained, "Airline travel is filled with unpredictable aspects, from getting to the airport on time and through security lines, to worries about flights delayed or canceled, many of which are out of our control."