牙周必定是未来发展的重要科目!随着树脂粘结剂的快速发展嵌体-贴面做的越来越多和种植技术的成熟 全冠优势越来越少 而其引起的牙周问题越来越被人们关注 。。。                                                                                                                                                                                                                                                                    有些人天真的以为全瓷修复就不会出现牙周问题？ 而临床上可以导致牙周炎症的因素实在太多 （肩台预备-取磨-义齿材料-牙周生理宽度等。。）                                                                                                                                                                                                                                                                      淘汰全冠？问题是国内经济还没发达到全民能接受嵌体-贴面-种植等高端消费 既然我们淘汰不了全冠 那我们就改变一下备牙的方式来减少牙周炎症吧！！ （改良式龈上肩台）            唇面常规肩台（平齐或龈下肩台）                               舌面制备（龈上肩台）           侧面观察可见肩台斜坡           后牙龈上肩台设计（比较常见）