Compared to the traditional methods of restoration of missing teeth, implant prostheses have incomparable advantages The absence of wire retainers and abutments (or significant reduction of abutments) avoids foreign body sensation and discomfort, as well as obstacles to eating, etc. Therefore, as a restorative alternative to our missing teeth, implants are the ideal restoration method after tooth loss, as they are very close to our natural teeth in terms of appearance, sensation and chewing function.