Objective: This study aimed to analyze factors affecting dental hygienists’ digital competency and work performance, serving as a foundation for improving their digital competency in future. Methods: This study examines the impact of dental hygienists’ digital competency on their work performance. The target population consisted of 200 dental hygienists employed at dental clinics and hospitals in Gwangju, Jeollanam-do, Chungcheongnam-do, Chungcheongbuk-do, Seoul, and Gyeonggi-do. A structured survey was used as the research method, and a total of 200 questionnaires were collected between April 2, 2024, and May 1, 2024. After excluding 11 incomplete questionnaires, 189 fully answered questionnaires were analyzed. Results: Analyzing dental hygienists’ general characteristics and digital competencies, older, highly educated, and hospital-based hygienists displayed higher digital competency. Older, highly educated, and desk-related task performing hygienists showed higher work performance abilities. Digital communication/collaboration and digital decision-making significantly influenced work performance abilities. Conclusion: The study’s findings suggest that dental hygienists with higher digital competency show better work performance. Enhancing digital communication, collab...