Everyone is different, and your teeth are no different. Some people have large teeth, and others have small teeth. If your teeth are smaller than the average, this is called microdontia. Microdontia is genetic; however, there are other known causes. For instance, if your front teeth are smaller than most people’s, it could result from teeth grinding. In addition, chemotherapy and other health conditions or syndromes can result in microdontia. Learn more in our blog article, "Large & Small Teeth: How to Fix Them."