In Nov 2009, I had 6 crowns - canine to canine - put in and 4 veneers on the premolars and molars. Now a space has grown in between my two front teeth. It catches food, makes my speech lispy and looks bad. I suspect the space is caused because of ill fitting crowns/veneers. I have about 3 loose contacts between the teeth. What can I do? Is this a case of malpractice if the dentist won't redo them?