If the missing teeth are not restored, the hazards are as follows: 1, it will cause the loss of chewing function, and after the loss of chewing function, many patients will choose to chew on the side, which will easily bring facial asymmetry; 2, if the missing teeth are not restored for a long time, it will cause the neighboring teeth to tilt toward the missing parts, and the opposing teeth will also tilt toward the missing parts, which will cause secondary problems, such as food embedding, and bite function disorders 3, if too long without timely restoration, it is easy to cause no restoration space in the future; 4, many patients after the loss of chewing function, if not timely repair dentures, will cause digestion, malabsorption. Many patients do not timely restore their front teeth after they are missing, they are prone to aging face, unclear pronunciation, and the patients’ social and psychological will be affected. Therefore, it is important to have timely restoration after the loss of one’s natural teeth.