Dental implants have been around for many years and most patients find dental implants very satisfying. Instead of grinding down adjacent teeth for a bridge to replace a missing tooth, a dental implant can be placed on its own to support an artificial crown. In the past, dental implants were placed at least 3 months after a tooth was removed from the jaw, to allow adequate healing of the bone. It is still recommended to wait 3 months in some areas of the jaw. It is better, sometimes, to place a dental implant right after removing a tooth.
Replacing a front tooth would be better if a dental implant was placed right after the removal of the tooth, provided that there is enough bone to receive a dental implant. By placing a dental implant right away in the front areas, the usual bone resorption is prevented. Better aesthetics of the final crown and soft tissue can be achieved by placing a dental implant immediately. In the back areas of the mouth, bone resorption after a tooth extraction is minimal and aesthetics is not important. Also, in the back, the extracted socket is usually not suitable for an immediate placement of dental implants. Here is a nice case published at lomalindaimplant.com to help you understand what a dental implant can do.
Ask your dentist what is best for you. Not all front tooth replacement can be done with an immediate placement of a dental implant.