Relationship Between Periodontal Screening and Recording Index Scores and Need for Periodontal Access Surgery

Background: The validity of using pretreatment Periodontal Screening and Recording (PSR) index sextant scores to estimate periodontal access surgery needs is evaluated in patients with chronic periodontitis before and after completion of non‐surgical periodontal therapy. Methods: In 110 adults, pretreatment probing data identified 486 sextants with PSR scores of 4 and 125 sextants with PSR scores of 3. Periodontal access surgery needs for all sextants were determined prior to treatment and after completion of non‐surgical periodontal therapy for 213 sextants in 38 patients by two experienced periodontist examiners. Results: PSR scores of 4 identified untreated sextants with periodontal access surgery needs significantly better than PSR scores of 3 (odds ratio = 27.8; P