Abstract
Dental implants have been widely applied in partially and fully edentulous patients and have shown predictable clinical outcomes, but there are still many cases of implant failures, such as osseointegration failure and peri-implant inflammation. To improve the success rate of implants, especially in improving osseointegration and antibacterial performance, various methods of implant surface modification have been applied. Surface modification methods covered include sandblasting with large-grit corundum and acid etched (SLA), plasma spraying, plasma immersion ion implantation (PIII), sputter-deposition, selective laser melting (SLM), anodic oxidation, microarc oxidation, sol-gel coating, alkaline heat treatment (AH) and Layer-by-Layer (LBL) self-assembly. This review comprehensively summarizes the influence of each method on osseointegration and biofilm attachment. The mechanical, chemical and biological disadvantages of these methods are involved. Besides, the mechanisms behind such techniques as increasing surface roughness to expand superficial area and enhance the adhesion of osteoblastic cells are discussed.
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