Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 May;95(5):444-455.
doi: 10.1002/JPER.23-0448. Epub 2023 Dec 19.

Influence of residual pockets on periodontal tooth loss: A retrospective analysis

Muhammad H A Saleh  1 , Debora R Dias  2   3 , Obada Mandil  1 , Ricardo P de Oliveira  4 , Abdusalam Alrmali  1 , Maurício G Araújo  2 , Hom-Lay Wang  1 , Zoltan Barath  5 , Istvan A Urban  1   5   6   7
Affiliations
Free article

Influence of residual pockets on periodontal tooth loss: A retrospective analysis

Muhammad H A Saleh et al. J Periodontol. 2024 May.
Free article

Abstract

Background: Individuals enrolled in supportive periodontal therapy (SPT) can still present with tooth loss due to periodontitis (TLP). There is limited evidence on the influence of residual pockets (RPc) and a defined "threshold" at which a patient's profile is set to be at high risk for TLP in the literature. Therefore, this study aimed to assess the influence of RPc on TLP and determine the prognostic performance of RPc compared to the staging and grading of periodontitis on TLP risk.

Methods: Clinical data from 168 patients (3869 teeth) treated for periodontitis and receiving SPT for at least 10 years were evaluated in this retrospective study. TLP and the percentage of sites with RPc ≥ 5 mm or ≥6 mm per patient were collected. The prognostic performance of RPc was compared to the staging and grading of the disease on TLP using a multilevel Cox proportional hazard regression model.

Results: Over a median follow-up of 25 years, 13.7% of teeth were lost, 4.6% of which were due to periodontitis. Most patients with TLP had ≥1 site with RPc ≥5 mm (90.8%) or ≥6 mm (77.6%). Multivariate multilevel Cox regression revealed that patients with >15% of sites with RPc ≥5 mm had a hazard ratio of 2.34, and grade C had a hazard ratio of 4.6 for TLP compared to RPc ≤4 mm/grade A. Grading exhibited the best discrimination and model fit.

Conclusion: Patients with RPc ≥5 mm at >15% of the sites are at risk for tooth loss. Grading and RPc ≥5 mm displayed very good predictive capability of TLP.

Keywords: periodontal attachment loss; periodontal pocket; periodontitis; tooth loss.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

References

REFERENCES

    1. Carvalho R, Botelho J, Machado V, et al. Predictors of tooth loss during long‐term periodontal maintenance: an updated systematic review. J Clin Periodontol. 2021;48(8):1019‐1036.
    1. Eickholz P, Kaltschmitt J, Berbig J, Reitmeir P, Pretzl B. Tooth loss after active periodontal therapy. 1: patient‐related factors for risk, prognosis, and quality of outcome. J Clin Periodontol. 2008;35(2):165‐174.
    1. Pretzl B, El Sayed S, Weber D, Eickholz P, Bäumer A. Tooth loss in periodontally compromised patients: results 20 years after active periodontal therapy. J Clin Periodontol. 2018;45(11):1356‐1364.
    1. Petsos H, Schacher B, Ramich T, et al. Retrospectively analysed tooth loss in periodontally compromised patients: long‐term results 10 years after active periodontal therapy‐Patient‐related outcomes. J Periodontal Res. 2020;55(6):946‐958.
    1. Helal O, Göstemeyer G, Krois J, et al. Predictors for tooth loss in periodontitis patients: systematic review and meta‐analysis. J Clin Periodontol. 2019;46(7):699‐712.