Table 2 Histopathological evaluation in periodontal tissues (mean ± SD)

Polymorphonuclear leukocytes (numbers/0.05 mm x 0.1 mm)

0.7 ± 0.5

2.1 ± 0.5^a

Distance between the cemento-enamel junction and the alveolar bone crest (μm)

571 ± 100

618 ± 42

Ratio of RANKL-positive cells

0.18 ± 0.05

0.41 ± 0.07^a

TRAP-positive osteoclasts (numbers/mm)

2.3 ± 2.2

7.9 ± 2.7^a