Dry mouth, or xerostomia, occurs when your mouth isn’t producing enough saliva to keep itself moist. Saliva is necessary to protect your mouth from infection, keep it clean and neutralize acids to help prevent plaque buildup and tooth decay. It’s very common and affects about 20% of people worldwide.
Dry mouth can have a significant impact on your health and overall quality of life. It can result in tooth decay, disrupted sleep, a rough, dry tongue, bad breath, difficulty chewing and swallowing, sore cracked lips, dehydration and more.