Whether it is feasible to leave a tooth empty after extraction without an implant depends on the location of the extracted tooth. If the extracted teeth are wisdom teeth, it is possible to leave them empty without implantation; if the extracted teeth are other than wisdom teeth, they need to be implanted, and it is not recommended to leave them empty. 1. Usually, wisdom teeth grow in a hidden position and basically do not bear the chewing function. Removal will not affect the occlusal relationship and neighboring teeth, so wisdom teeth extraction does not require implantation. 2. If the wisdom tooth is extracted from other teeth, and its neighboring teeth and the teeth of the bite are relatively normal. In this case, a long time without dental implants empty, will lead to the adjacent teeth to the direction of the teeth gap offset, the extraction of the gap will slowly narrow or even disappear, while the other teeth gradually widen the gap, easy to retain food debris, may induce periodontitis in the long term. 3. In addition, the alveolar bone in the gap will be gradually absorbed, which will bring inconvenience to dental restoration in the future. After tooth extraction, it is recommended to have dental implants or choose other dental restoration methods under the guidance of a professional physician.