Best dental clinic in Adambakkam | How Breathing Through Your Mouth Affects Your Smile Breathing through your mouth may seem harmless, but it can negatively impact your oral health and smile aesthetics. Chronic mouth breathing dries out the mouth, reducing saliva, which is essential for neutralizing acids and washing away food particles. This increases the risk of tooth decay, bad breath, gum disease, and even misaligned teeth. In children, it can lead to changes in jaw development and facial structure. At Dr. Akkshaya Dental & Aesthetics, we offer expert evaluation and treatment plans to address mouth breathing early, helping you achieve healthier breathing and a confident smile.