前牙缺失是临床常见的缺损畸形。传统的修复方法为可摘局部义齿和固定义齿，前者基托带来的感觉障碍和语音障碍及反复摘带等缺点使多数患者难以接受；后者则因切割牙体组织过多及易显露金属颜色而不受欢迎。作者在临床上应用四边形支架复合树脂直接粘接桥对前牙缺失进行修... Loss of anterior teeth is a common clinical defect. The traditional methods of repair are removable partial dentures and fixed dentures, the former of the base of the sensory disturbances and voice disorders and repeatedly pick the shortcomings and other defects make the majority of patients unacceptable; the latter due to cutting tooth tissue too much and easy to reveal the metal Color is not popular. The author in clinical application of quadrilateral stent composite resin direct bonding bridge missing anterior teeth repair ...