The role of dentures are: 1, dentures can maintain the integrity of the teeth, missing teeth, such as not set teeth, neighboring teeth will be tilted to the side of the missing teeth easy to cause congestion; 2, missing front teeth will cause leakage of wind when you speak, affecting the pronunciation; 3, to restore maxillofacial morphology: such as teeth after the loss of maxillofacial soft tissues collapsed, the face will look older, this time set with a denture to increase the maxillofacial fullness, to increase the confidence of life; 4, to restore the function of mastication: such as after the teeth are partially missing or the loss of all the teeth can lead to chewing is not adequate, food can not be fully digested and absorbed, affecting the health.