Abstract: Nowadays, with the innovation of surgical technology and the development of bone substitute materials, scholars at home and abroad have proposed a variety of horizontal bone augmentation techniques to reconstruct the contour of alveolar ridge and provide reliable guarantee for the initial stability of implants. However, the success of these techniques will also be affected by some factors. This paper discusses the technical points of horizontal bone augmentation, compares and analyzes the clinical efficacy of tent screw technology and conventional GBR technology in horizontal bone increment through two cases, so as to provide reference for clinicians to choose the method of horizontal bone augmentation for severe alveolar ridge atrophy.

Key words: tent screw technology, GBR, horizontal bone augment, dental implant