GCF Galectin-3 and Interleukin-1beta Levels in Periodontitis.

"Periodontal clinical meaurements including the probing depth, clinical attachment loss, the dichotomous recording (present/absent) of bleeding on probing, gingival index, and the plaque index at six sites (distobuccal, buccal, mesiobuccal, distopalatinal/lingual, palatinal/lingual, mesiopalatinal/lingual) on all teeth, except third molars, were performed using manuel periodontal probe.~Standardized absorbent paper strips were used for gingival crevicular fluid sampling. A sterile paper strip was gently inserted into the gingival sulcus/periodontal pocket until mild resistance was felt and were kept in place for 30 seconds. The absorbed fluid volume was measured by a precalibrated electronic device."