Abstract: With the continuous innovation of implant-related materials，the rapid progress of implant surface treatment technology，and the exploration of implant technology theory and practice，the rapid development of oral implant technology has been directly promoted. As one of the achievements which was commonly used and mature restoration treatment methods for edentulous patients，"All-on-4" implantology has been widely applied in clinical practice. However，with the popularization of this technology in clinical practice，different complications have emerged. It can be roughly divided into mechanical complications，biological complications，and aesthetic complications. In order to better understand the possible complications and causes of complications caused by this technology，this article will classify and analyze the complications of "All-on-4"  implantation complete fixed repair，in order to provide reference for clinical doctors in their full mouth implant repair work.

Key words: edentulous, All-on-4, mechanical complications, biological complications, aesthetic complications

摘要： 种植相关材料的不断革新，种植体表面处理技术日新月异的进步，以及种植技术理论和实践的不断探索，推动了口腔种植技术的高速发展。其中，“All-on-4”作为全口无牙颌患者常用且成熟的种植修复治疗方法之一，已在临床上得到广泛应用。然而伴随着该技术在临床上的普及，随之而来出现了不同的并发症，具体包括机械并发症、生物学并发症、美学并发症。为更好地了解该技术可能带来的并发症及产生并发症的原因，文章将对“All-on-4”全口种植固定修复后并发症发生的原因进行分类分析，以期为临床医生的全口种植修复工作提供参考和借鉴。

关键词: 无牙颌, All-on-4, 机械并发症, 生物学并发症, 美学并发症