Main

Kasaj A, Röhrig B et al. J Periodontol 2008; 79: 394–400

Numerous adjunctive substances, including hydroxyapatite, have been shown to improve the clinical outcome of periodontal surgery. In this study, 28 subjects received non-surgical periodontal treatment, followed by flap surgery with randomisation to either insertion of the new paste or no paste.

In the control group, mean probing depth reduced from 7.4 mm at baseline to 4.9 mm 6 months later, and in the test group, from 7.4 to 3.4 mm. Respective mean clinical attachment levels changed from 8.1 to 6.4 mm, and from 8.0 to 4.4 mm. The differences between groups were statistically significant. However, no data are given regarding tobacco smoking, and it is not stated whether the surgeon was aware of the status of the surgical site before its preparation.