Success and survival of post-restorations: six-year results of a prospective observational practice-based clinical study.

Kramer, E J; Meyer-Lückel, H.; Wolf, Thomas Gerhard; Schwendicke, F; Naumann, M; Wierichs, R J (2019). Success and survival of post-restorations: six-year results of a prospective observational practice-based clinical study. International endodontic journal, 52(5), pp. 569-578. Wiley-Blackwell 10.1111/iej.13040

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AIM This prospective, noninterventional, multi-centre, practice-based study aimed to evaluate the longevity of endodontically treated teeth (ETT) restored with posts and to analyse factors influencing the success and survival of endodontic posts. METHODOLOGY Eight general dental practitioners each placed up to 27 endodontic posts without any restriction to size and material. Teeth were restricted to incisors, canines and premolars. Multi-level Cox proportional hazards models were used to evaluate the association between clinical factors and time until failure. RESULTS A total of 195 endodontic posts were followed-up for up to 6.5 years in 195 patients. Of these, 140 posts were judged as successful [mean success time: 59 (55-63) months]; the mean annual failure rate was 8.6%. This decreased to 4.4% when excluding recementations. 152 posts survived [mean survival time: 64 (60-67) months]. Recemented restorations had an eight times higher failure rate compared with new restorations. Furthermore, restorations with glass fibre post had a significantly lower success rate compared with titanium posts. CONCLUSION Relatively low success and survival rates occurred for restorations with posts after root canal treatment in a private practice setting after a follow-up of up to 6.5 years. Recemented crowns had a high risk of failure.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Meyer-Lückel, Hendrik and Wolf, Thomas Gerhard


600 Technology > 610 Medicine & health








Hendrik Meyer-Lückel

Date Deposited:

11 Feb 2019 15:36

Last Modified:

22 Oct 2019 18:16

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

endodontically treated teeth post-endodontic practice-based multivariate analysis recementation risk factor




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