You probably know that stress can affect your overall health adversely. But did you know that stress can also adversely affect your oral health? Well, it’s true…Not only does stress cause certain dental conditions, but it also results in the patient not taking care of their dental hygiene. In this article, we’ll explore the oral conditions that can result from stress and how to keep stress from sabotaging your oral health. 1) Canker Sores or Cold Sores: Canker Sores are small, shallow ulcers in the mouth that make eating and talking extremely uncomfortable. These can result from prolonged emotional stress.