牙根对于修复治疗能产生直接和间接的固位作用,也有利于牙嵴的保持,因而保留牙根以维持牙嵴的方法近年来研究较多。临床上常因龋和牙周病太严重不可避免的要拔牙,所以为了找出代替埋藏牙根的可能,有人已发现用种植体填满拔牙后的间隙;能延缓牙嵴吸收,种植体像一个箱架提供了机械 Roots for repair treatment can have direct and indirect retention, but also conducive to the retention of the ridge, which retained root to maintain the ridge in recent years more research. Clinically often because of caries and periodontal disease is too serious to inevitable tooth extraction, so in order to find out instead of the possibility of buried roots, it has been found with implants fill the gaps after extraction; can delay the absorption of crest, the implant like a The rack provides the machinery