Feeling tightness with the upper implant bridge (14/15). No pain. Feels too large & perceive a slight shift in front teeth. Gums don't bleed. Upper implants placed late 9/16. Bridge placed 3.10.17. A piece of impression material had been left on the mucosa (photo) but removed - area cleaned & two antibiotics given/taken/finished. Independent Panoramic x-ray 3.23.17 shown. Grateful for advice as to what to do. Don't want to threaten natural teeth.