Usually, the front incisors are higher than the other teeth because of periodontal disease, tooth misalignment, genetic factors and so on. 1. Periodontal disease: Periodontal disease causes the gums to gradually shrink and the alveolar bone to gradually resorb, which results in the patient’s incisors being higher than other teeth. Usually older patients will have this kind of situation. 2. Disharmony: Generally speaking, because the teeth are not well aligned or the shape of the dental arch is relatively sharp, the distance between the two incisors and the person looking at them is relatively close, which makes the incisors appear to be higher. 3. Heredity: The incisors are relatively high compared to other teeth, and some patients are caused by genetic factors. In this case, as long as the teeth are healthy, there is no problem. It should be noted that when the incisors are found to be higher than other teeth, you need to go to the hospital in time to find out the cause of the disease, and under the guidance of the doctor to deal with it.