关键词: 智慧课程, 知识图谱, 口腔正畸学, 教学改革

Abstract: To address the prominent challenges in undergraduate orthodontics education，such as the fragmented and abstract nature of theoretical knowledge，disconnection from clinical practice，limited class hours，and lack of personalized instruction，the Department of Orthodontics，College of Stomatology，Shanghai Jiao Tong University has developed an artificial intelligence（AI）-empowered smart course of orthodontics based on a knowledge graph. Centered around nine major types of malocclusion，the course content has been restructured to construct a four-dimensional knowledge graph comprising a competence layer，a problem layer，a knowledge layer，and a resource layer，enabling knowledge visualization and structured associations. On this basis，several modules were developed，including an AI intelligent learning companion，personalized learning path recommendation，virtual simulation practice platform，smart diagnostic inquiry agent，and intelligent teaching assistant，enabling real-time question-answering，precision assessment and practice，adaptive learning，simulated clinical interviews，and full-process workload reduction for instructors. The teaching model adopts a blended online-offline approach，combined with flipped classrooms and multi-dimensional process-based intelligent assessment. Preliminary applications show significant improvement in student learning interest，teaching satisfaction，and comprehensive case analysis performance，as well as notable progress in innovation and entrepreneurship projects，and paper publications. This construction of AI-empowered knowledge graph-based smart course effectively resolves the teaching difficulties in orthodontics，promotes the comprehensive development of students' clinical reasoning，practical abilities，and innovative competencies，and provides a replicable practical paradigm for medical education reform.

Key words: smart course, knowledge graph, orthodontics, teaching reform