Journal of clinical periodontology · 2026
Residual Pockets as an Endpoint on Periodontal Disease Progression in Supportive Periodontal Care.
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Tay John Rong Hao, Ng Ethan, Siow Dawn Shu Fen, Zhan Stella Jinran, Saffari Seyed Ehsan, López Rodrigo, Preshaw Philip M
Аннотация
AIM: To investigate whether the number of residual probing pocket depths (PPDs) ≥ 5 mm predicts periodontitis progression in non-smoking patients undergoing supportive periodontal care (SPC).
MATERIALS AND METHODS: This retrospective study included 121 patients (3028 teeth), with Stage III/IV, Grade B/C periodontitis, who completed active periodontal therapy and were enrolled in SPC. Multivariable logistic regression with inverse probability censoring weighting assessed the association between the number of residual sites with PPD ≥ 5 mm at the start of SPC and disease progression at 1-year and 5-year intervals. Receiver operating characteristic (ROC) curve analysis was used to identify optimal thresholds for predicting progression.
RESULTS: Each additional site with PPD ≥ 5 mm at the start of SPC was associated with higher odds of disease progression (≥ 2 mm PPD increase at any site) after 1 year (adjusted OR: 1.15; 95% CI: 1.05-1.29). For periodontal tooth loss, each additional PPD ≥ 5 mm site increased the odds by 11% over 5 years. ROC analysis suggested that ≥ 6 residual sites provided the best discrimination for predicting 1-year PD progression (AUC: 0.73).
CONCLUSION: Six or more residual PPDs ≥ 5 mm at SPC were associated with short-term disease progression, although the performance was modest.
MATERIALS AND METHODS: This retrospective study included 121 patients (3028 teeth), with Stage III/IV, Grade B/C periodontitis, who completed active periodontal therapy and were enrolled in SPC. Multivariable logistic regression with inverse probability censoring weighting assessed the association between the number of residual sites with PPD ≥ 5 mm at the start of SPC and disease progression at 1-year and 5-year intervals. Receiver operating characteristic (ROC) curve analysis was used to identify optimal thresholds for predicting progression.
RESULTS: Each additional site with PPD ≥ 5 mm at the start of SPC was associated with higher odds of disease progression (≥ 2 mm PPD increase at any site) after 1 year (adjusted OR: 1.15; 95% CI: 1.05-1.29). For periodontal tooth loss, each additional PPD ≥ 5 mm site increased the odds by 11% over 5 years. ROC analysis suggested that ≥ 6 residual sites provided the best discrimination for predicting 1-year PD progression (AUC: 0.73).
CONCLUSION: Six or more residual PPDs ≥ 5 mm at SPC were associated with short-term disease progression, although the performance was modest.