Pcp unc 15 periodontal probe

Plaque index (PI),^{28 (link)} gingival index (GI),^{29 (link)} bleeding on probing (BOP),^{30 (link)} probing depth (PD), and clinical attachment level (CAL) were measured using periodontal probe (PCP-UNC 15 periodontal probe Hu-Friedy, Chicago, IL, USA) at baseline. At the 4th and 8th week after SRP; PI, GI, and BOP were recorded. All periodontal parameters were again measured at the 12th week. PI and GI were recorded at four sites per tooth and BOP, PD, and CAL were recorded at six sites per tooth in all teeth except third molars. BOP was assessed in a dichotomous manner and was calculated as the percentage of sites positive for BOP. Maxillary labial gingival coverage by upper lip in resting position was also assessed in the study population.
All clinical periodontal examinations were carried out by a single, calibrated investigator (M.K.) to preclude inter-examiner variability. A calibration exercise was performed until reproducibility in >85% of measurements done on two occasions 48 h apart was achieved.

At baseline and 3 months later we took the following clinical measurements for each periodontal defect: gingival recession (GR), at mid-buccal aspect of the tooth, from the CEJ to the most apical extension of gingival margin; probing depth (PD), at mid-buccal aspect of the tooth, from the gingival margin to the bottom of the sulcus; clinical attachment level (CAL), at mid-buccal aspect of the tooth, from the CEJ to the bottom of the sulcus; recession width (RW), at CEJ level; gingival thickness (GT), at mid-buccal aspect of the tooth, on a long axis 3 mm apically from the gingival margin (using K-file 25 ISO with a silicon marker); keratinized tissue (KT), from the most apical point of gingival margin to the muco-gingival junction (MGJ); plaque index (PI), at four aspects of the tooth (O’Leary et al., 1972) [15 (link)]; bleeding on probing (BOP), at four points: mesio-vestibular (mv), mid-vestibular (v), disto-vestibular (dv), mid-lingual (l) (Ainamo&Bay 1975) [16 (link)].
All measurements were taken by a calibrated examiner (AS) with the PCP UNC15 periodontal probe (Hu-Friedy, Chicago, IL, USA) and rounded to the nearest 0.5 mm. The intraexaminer reproducibility of GR measurements was assessed at the interclass correlation coefficient >90%.

To determine the clinical periodontal status, gingival Index (GI), plaque Index (PI), probing depth (PD), bleeding on probing (BoP), and clinical attachment level (CAL) were recorded at mesiobuccal, midbuccal, distobuccal, mesiolingual, midlingual, and distolingual sites of each tooth using a PCPUNC15 periodontal probe (Hu Friedy, Chicago, IL, USA).

Periodontal indexes (PPD, CAL, PI and BOP) were collected prior to the treatment using a PCPUNC 15 periodontal probe (Hu-Friedy, Chicago, IL, USA) at baseline, 3 and 6 months. Patients were treated as follows: oral hygiene instructions, SRP at sites with PPD > 3 mm using ultrasonic devices (Suprasson Newtron, Satelec, France) and manual curets (Deppeler, Switzerland) under local anesthesia, in 2 sessions within 7 days. Following each session, patients were instructed to rinse with chlorhexidine (0.12%) mouthwash (Eludril, Pierre Fabre, Cahors, France) for 15 days. At 3 months, residual sites with PPD > 3 mm were re-instrumented. All periodontal examinations, as well as SRP, have been performed by the same operator blinded to psychological measurements results.