Tooth loss in compliant and non-compliant periodontally treated patients: 7 years after active periodontal therapy.

Abstract

AIMS:

To investigate the incidence and reasons for tooth loss during active periodontal therapy (APT) and periodontal maintenance (PM) in a specialist institution.

MATERIAL AND METHODS:

Retrospective data were collected from 273 patients [all compliers (AC)] and cross-sectional data from 39 patients after discontinuation of PM [non-compliers (NC)] for at least 7 years after APT. Descriptive statistics and regression analysis were performed. A comparison was made between AC and NC. The prognostic factors associated with tooth loss during PM were identified.

RESULTS:

AC lost 1.3 teeth/patient during APT and 0.9 teeth/patient during PM (mean 10.7 years). Tooth loss due to periodontitis was 0.03 teeth/patient/year. The age of 60 was a significant predictor of tooth loss during PM (odds ratio of 2.1). NC lost 1.1 teeth/patient during APT and 2.7 teeth/patient during discontinuation (mean 9.6 years). Tooth loss due to periodontitis was 0.22 teeth/patient/year, a sevenfold increase (p<0.05) compared with AC. Regression analysis failed to identify any significant predictors for tooth loss during the discontinuation of PM.

CONCLUSIONS:

In this study, the provision of PM led to minimal tooth loss, especially due to periodontitis, for a mean period of 10 years after APT. The completion of APT without PM may predispose patients to lose more teeth compared with patients who undergo PM.

• Authors: Mervyn Cher-Hui Ng, Marianne Meng-Ann Ong, Lum Peng Lim, Chu Guan Koh, Yiong Huak Chan
• Journal: Journal of clinical periodontology (J Clin Periodontol) Vol. 38 Issue 5 Pg. 499-508 (May 2011) ISSN: 1600-051X [Electronic] United States
• PMID: 21342213 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © 2011 John Wiley & Sons A/S.

Topics

• Adult
• Aged
• Aged, 80 and over
• Chronic Periodontitis (complications, therapy)
• Cross-Sectional Studies
• Female
• Humans
• Longitudinal Studies
• Male
• Middle Aged
• Oral Hygiene (statistics & numerical data)
• Patient Compliance
• Retrospective Studies
• Statistics, Nonparametric
• Tooth Loss (complications, prevention & control)
• Treatment Outcome
• Young Adult