Anterior palatal plate with posterior palatal bar can not be used on the patient whose alveolarmucosa is not healthy.
缺牙区牙槽骨、黏膜条件较差者，应避免前腭板加后腭杆形式的大连接体。
2
Conclusion Skin graft and alveolarmucosa both formed fiber connective tissue attachment on the surface of implant, which seal the environment between the oral and bone-interface.