Variables affecting tooth survival and changes in probing depth: a long-term follow-up of periodontitis patients.

Abstract

AIM:

To retrospectively assess tooth-survival rate and its association with patient and oral variables in periodontal office patients, followed up to 18 years.

MATERIAL AND METHODS:

Patients in a private periodontal office whose files included initial examination (T0 ), reevaluation (TRe ) and ≥ 10 years after T0 (TF ) chartings, and received periodontal therapy and supportive periodontal therapy (SPT) after TRe were included. General health, plaque scores (PI), probing depth (PPD), bleeding on probing (BOP) at six points/tooth, tooth extractions, and SPT visits were extracted from patient files at T0 , TRe , and TF . Descriptive statistics and Cox regression analysis were performed.

RESULTS:

Fifty patients (mean 26 ± 4 teeth/patient, 1301 teeth) fulfilled inclusion criteria. About 20 and 129 teeth respectively were extracted before/after TRe , 96 of them for periodontal causes. PPD>7 mm at TRe (HR = 17.7, 95%CI 8.6, 36.6), age above 60 years (HR = 3.3, 95%CI 1.5, 7.2), multi-rooted teeth (HR = 1.9, 95%CI 1.2, 3.1) and SPT<3 times/year (HR = 1.8, 95%CI 1.1, 2.9), were the best prognostic factors for tooth loss during follow-up. (p < 0.05, Cox regression analysis). A continuous, statistically significant reduction was observed in mean PPD among teeth that survived follow-up [4.3 ± 1.8 mm, 3.5 ± 1.4 mm, 3.2 ± 1.3 mm, at T0 , TRe , TF , respectively. (p < 0.001, Repeated-measures test)].

CONCLUSION:

Regular SPT was associated with low tooth-loss rates and continuous reductions in probing depth. PPD after initial therapy, age above 60, multi-rooted teeth and infrequent SPT were strong negative prognostic factors for long-term tooth survival among periodontal patients.

• Authors: Michael Saminsky, Michal Halperin-Sternfeld, Eli E Machtei, Jacob Horwitz
• Journal: Journal of clinical periodontology (J Clin Periodontol) Vol. 42 Issue 6 Pg. 513-9 (Jun 2015) ISSN: 1600-051X [Electronic] United States
• PMID: 25970318 (Publication Type: Journal Article, Observational Study)
• Copyright: © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Topics

• Adult
• Age Factors
• Aged
• Dental Plaque Index
• Female
• Follow-Up Studies
• Health Status
• Humans
• Longitudinal Studies
• Male
• Middle Aged
• Molar (pathology)
• Periodontal Index
• Periodontal Pocket (complications, therapy)
• Prognosis
• Proportional Hazards Models
• Retrospective Studies
• Survival Rate
• Tooth Extraction
• Tooth Loss (etiology)
• Treatment Outcome