抄録
The relationships between the crowding and the gingivitis were studied on 147 malposed anterior teeth of 26 orthodontic patients (4 males and 22 females, 11-29 years of age) and 161 malposed anterior teeth of 29 male students (22-25 years of age).
1. Positive correlations were found between the degree of displacement of tooth and the degree of the gingival inflammation in both patients and students.
2. The change of gingival inflammation due to the improvement of occlusion by orthodontic procedures were observed in the patients.
In conclusion, the greater the displacement of tooth before orthodontic treatment, the gteater the improvement of gingival inflammation was obtained by orthodontic treatment. However, in the case of severe gingivitis, less improvement of inflammation was observed.
