[How to perform standardized periodontal probing: part of a series on basic training in periodontal diagnosis and treatment].

Periodontal probing is the most important clinical examination in periodontology, essential for the diagnosis, fomulation of treatment plan, assessment of treatment outcomes, and prevention of recurrence of periodontal diseases. This article provides a detailed introduction to the purpose and importance of periodontal probing, standardized probing methods, and how to conduct periodontal probing training and education. As the third chapter in the basic skills training series for periodontal diagnosis and treatment, this article aims to provide guidance in the standardized teaching and practice of periodontal probing, thereby promoting the popularization and improvement of standardized periodontal treatment techniques.