Generally, 3-6 months after tooth extraction, the wound can form a good healing and the alveolar ridge resorption tends to stabilize. Therefore, the tooth should be veneered as soon as possible 3-6 months after tooth extraction. If you do not set the teeth in time, it may bring you oral and systemic effects, mainly manifested as: 1, chewing function is reduced, increasing the burden on the digestive system. 2, aesthetic impact, which in turn affects mental health. 3.Pronunciation dysfunction. 4, Temporomandibular joint disorder. 5.Remaining natural teeth disease. Missing teeth for a long time, neighboring teeth to the missing teeth tilt, the maxillary teeth elongation caused by food blockage, followed by caries, gingivitis, periodontal disease.