Abstract: PURPOSE: To evaluate the effect of standardized periodontal probing training on the teaching of periodontal clinical probing for undergraduates by using Florida probe system. METHODS: Twenty undergraduates who practiced in the Department of Periodontology of Changzhou Stomatological Hospital from May 2022 to November 2022 were selected as the study objects and randomly divided into two groups with 10 students in each group. The experimental group received standardized periodontal probing training, while the control group did not receive training. Two groups of students used the traditional probe and the Florida probe to probe the left and right half-mouth teeth of one patient. In addition, a periodontal specialist used Florida probe to conduct full oral examination of the same patient, and the results were compared with those of the two groups of students. SPSS 26.0 software package was used for statistical analysis of the obtained data. RESULTS: There was no significant difference of probing depth(PD) between undergraduates and periodontal specialist in the experimental group (P>0.05), while there was significant difference in the control group (P<0.05). In the control group, PD values in the anterior area were not statistically different from those of periodontal specialist (P>0.05), while PD values in the posterior area were statistically different (P<0.05). Both groups of patients reported that the Florida probe system was more comfortable. CONCLUSIONS: Standardized periodontal probing training is helpful to improve the clinical probing ability of undergraduates. The use of Florida probe system can not only evaluate the teaching effect, but also improve the comfort level of patients, which is worthy of further application in the teaching course of periodontal probing for undergraduates.

Key words: Periodontal probing, Standardized periodontal probing training, Florida probe, Undergraduate teaching