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Patient-, tooth-, and dentist-related factors influencing long-term tooth retention after resective therapy in an academic setting-a retrospective study.

Abstract：

OBJECTIVES:The aim of this study was to evaluate long-term (≥5 years) tooth survival after resective therapy of multi-rooted, periodontally treated teeth and investigate the influence of patient-, tooth-, and dentist-related risk factors on tooth loss. MATERIALS AND METHODS:A total of 128 patients with root-resected molars were reexamined. Patient-, tooth-, and dentist-related factors were assessed. Tooth survival times were estimated using the Kaplan-Meier method in addition to a Cox proportional hazard frailty model with survival as the dependent outcome to assess an association with predictor variables. RESULTS:Overall, 100 patients with 130 molars were included. The average postoperative reevaluation period was a 9.62 ± 3.08 year showing an overall survival rate of 56.9% after resective therapy. A cumulative survival rate of 69% (95% CI (61%; 77%)) after 5 years decreasing to 48% (95% CI (35%; 61%)) after 15 years was detected. The median survival time of resected molars was 13.83 years (95% CI (8.75; ∞)). Adherence, smoking, and insurance status were detected to significantly influence the risk for loss of molars after resective therapy. CONCLUSIONS:Resective periodontal procedures can still be considered an option to retain periodontally compromised molars. In contrast to dentist- and tooth-related factors, patient-related factors impacted significantly upon tooth survival. CLINICAL RELEVANCE:Periodontally compromised molars could be retained in more than 50% of the cases thus prolonging their life span significantly. This information shall be valuable for clinicians in decision-making, treatment planning, and postoperative management. The weighting of resective therapy to implants especially with regards to the risk of peri-implantitis should be considered.

journal_name

Clin Oral Investig

journal_title

Clinical oral investigations

authors

El Sayed N,Cosgarea R,Rahim S,Giess N,Krisam J,Kim TS

doi

10.1007/s00784-019-03091-9

subject

Has Abstract

pub_date

2020-07-01 00:00:00

pages

2341-2349

issue

eissn

1432-6981

issn

1436-3771

pii

10.1007/s00784-019-03091-9

journal_volume

pub_type

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Patient-, tooth-, and dentist-related factors influencing long-term tooth retention after resective therapy in an academic setting-a retrospective study.