The direct impact is chewing, chewing function is not ideal, will affect the function of the gastrointestinal tract, and then affect the health of the whole body; 3, pronunciation function, especially in the upper and lower front teeth area after the loss of teeth, the position of the tongue will be affected, the impact on pronunciation will also be very obvious, the impact on teachers, lawyers and other professions that require very high pronunciation is more obvious; 4, the impact on the neighboring teeth and the jaw teeth, such as the neighboring teeth because If the neighboring teeth move and tilt to the middle because of missing teeth, the opposing teeth will drop or rise because of missing teeth.