复盖义齿(overdenture)即复盖在天然牙或牙根上的全口义齿或活动部份义齿,又称上盖义齿、套入义齿或混杂式义齿等。在活动义齿修复中,如何能够更好的保存余留牙嵴、增加活动义齿的固位,稳定和支持,是口腔矫形医生必须考虑解决的一个问题。近年来,由于复盖义齿在临床上的广泛应用,使这个问题得到了较好的解决。国外文献有关复盖义齿的报道比较多。Defranco提出,早在100年前已有记载。Carlsson和Persson对缺牙后下颌牙槽 Overdenture (overdenture) that is covered in the natural teeth or roots of the denture or removable partial dentures, also known as the overdenture, set denture or hybrid denture and so on. How to better preserve the retained crest, increase the retention, stability and support of the movable denture in the denture restoration is a problem that orthodontists must consider to solve. In recent years, due to the extensive clinical application of overdentures, this problem has been solved. Foreign literature reports more coverage of dentures. Defranco proposed, as early as 100 years ago has been recorded. Carlsson and Persson lack orthognal mandibular alveolar