After tooth extraction, according to each patient’s situation is not the same, there are different implantation timing, can be divided into the following three kinds: 1, immediately after the extraction of teeth in the cavity for the immediate extraction of planting technology, also known as immediate implantation, that is, the same day of extraction to complete the implantation of dental implants root implantation; 2, the early implantation, early implantation of dental implants mainly in the extraction of teeth to the extraction of teeth in the stage of the implantation of dental implants three months after the extraction of teeth, more than three months and then implantation of dental implants, that is, delayed implantation technology. Early implantation is mainly implanted after tooth extraction to the post-extraction stage, more than three months before dental implantation, is the technology of delayed implantation, different implantation timing has different advantages and disadvantages and indications, according to each patient’s oral condition to develop a suitable program; 3, immediate implantation, can be very clear to see the advantages of shortening the treatment time can also reduce the pain because of anesthesia can be done at the same time to complete the extraction of the teeth and dental implantation surgical procedures, which can reduce the pain, so the immediate implantation is also a very good now! Of course, each implantation timing has its own indications, immediate implantation also need to choose the right indications to have good results, not every tooth can be suitable for immediate implantation, such as acute inflammation of the teeth, teeth have more serious bone defects, it is not recommended to carry out the immediate implantation of the extraction, and usually in the molar region, if there is no bone volume is particularly good conditions, usually wait until the extraction socket is completely healed and then carried out. Delayed implantation, because delayed implantation has the advantage of waiting until the extraction socket has completely healed and the inflammation has completely subsided, which can ensure better and more predictable clinical treatment results; 4. Early implantation, mainly for the extraction socket with inflammation, as well as the extraction socket needs to carry out the operation of repairing and reconstructing the bone defect, early implantation is usually carried out, especially for the anterior teeth area involving the alveolar sockets with bone destruction, the choice of the Early implantation combined with bone defect repair surgery, bone defect repair surgery called GBR, such a procedure can obtain better aesthetic results, this is the general process of the three implantation timing after tooth extraction, immediate implantation, early implantation and delayed implantation.