Hello, according to different diseases, clinical manifestations are different, and the same thing has a negative impact on appearance. The irregular arrangement of teeth is manifested as in-and-out teeth, overlapping teeth and so on. , making it difficult to clean teeth and prone to dental diseases. Abnormal tooth morphology is characterized by incomplete teeth, which is not commensurate with adjacent teeth and affects chewing and image. The most common tooth color abnormalities are dental fluorosis and tetracycline teeth.