[Factors influencing accuracy and corresponding strategies for intraoral scanning in full-arch implant rehabilitation].

The rapid development of digital dentistry has established intraoral scanning as a core technology for acquiring digital impressions in full-arch implant rehabilitation for edentulous patients, and its accuracy plays a decisive role in clinical restorative outcomes. This article reviews the major factors influencing intraoral scanning accuracy in edentulous implant cases, including scanner-related factors, scanning procedure-related factors, and factors associated with scan bodies and auxiliary devices. Corresponding solutions and optimization strategies for improving scanning accuracy are also discussed, aiming to provide clinicians with more precise and reliable approaches for digital impression acquisition.