Research Article

Tai Chi Exercise Increases SOD Activity and Total Antioxidant Status in Saliva and Is Linked to an Improvement of Periodontal Disease in the Elderly

Table 4

Oral hygiene index-simplified and periodontal disease index by group.

Control Tai Chi
BaselineSix months BaselineSix months

OHIS2.43 ± 0.32.45 ± 0.22.45 ± 0.32.46 ± 0.3
PDI (mm)3.2188 ± 0.63.7960 ± 0.43.6267 ± 0.93.2813 ± 0.8*

Values are means ± SE. Repeated measures analysis of variance ; OHIS: oral hygiene index-simplified; PDI: periodontal disease index.