<qa>  What was the primary primary primary treatment for gingival biopsies?Study Design Baseline: Before harvesting gingival biopsies, bleeding on probing BOP, periodontal pocket depth PPD and clinical attachment level CAL were registered at the biopsy site, for all study participants. Following the registration of the clinical parameters, gingival biopsies were obtained from the periodontally-healthy individuals during crown lengthening surgery or surgical removal of wisdom teeth. In the periodontally-diseased group, biopsies were harvested from two sites: healthy site and periodontally-involved site. After harvesting of biopsies, patients with periodontal disease underwent scaling and root planing. 