Abstract
The purpose of this study was to classify factors on which effect the change of plaque control level. 81 patients involved with periodontal disease who were treated by senior students were observed their PCR changing during the active treatment. According to the PCR changing pattern, participants were classified into three groups: well group, average group, poor group. To deal with patients directly, following factors were recorded: sex, age, occupation, the reason come to the hospital, chief complaint, the history of periodontal treatment, TBI have or haven't, the change of subjective symptoms during the process of PCR reached about 10% level, recognization of plaque and psychological tests. The senior students were asked the detail of their motivation to patients and their reliabilities were measured by instructors. Patient's Malalignment Index was scored from study cast. Pocket depth and the degree of bone absorption were measured. And each factor compared statistically among three groups.
The results indicate that factors as follows effect the PCR changing: chief complaint, change of subjective symptoms, pocket depth, degree of bone absorption; and the occupation, TBI, Malalignment Index and student's reliability may have some effect on the PCR changing. Student's motivations to the patients were almost equivalent in the contents and the emphasis. Consequently, the factors given above may effect on the motivation itself.
