The Open Dentistry Journal

ISSN: 1874-2106 ― Volume 14, 2020

Clinical Evaluation of Fiber-Reinforced Composite Restorations in Posterior Teeth - Results of 2.5 Year Follow-up

Johanna Tanner1, 4, Mimmi Tolvanen2, Sufyan Garoushi3, 4, *, Eija Säilynoja3, 5
1 Department of Prosthetic Dentistry, Institute of Dentistry, University of Turku, Turku, Finland
2 Department of Community Dentistry, Institute of Dentistry, University of Turku, Turku, Finland
3 Department of Biomaterials Science, Institute of Dentistry, University of Turku, Turku, Finland
4 Turku Clinical Biomaterials Center – TCBC, Institute of Dentistry, University of Turku, Turku, Finland
5 Research, Development and Production Department, Stick Tech LTD – Member of GC Group, Turku, Finland



The aim of this study was to evaluate the clinical performance of posterior composite restorations reinforced by bulk base of short-fiber composite (everX Posterior, GC Corporation).


Thirty-six short fiber-reinforced composite restorations were placed in premolar and molar teeth of 33 patients. Eight of the teeth were vital and 28 were non-vital. Average follow up time of the restorations was 30.6 months (2.5 years), ranging from 16.2 to 51.3 months (1.3 - 4.3 years).


One restoration failed during the follow-up period due to secondary caries, at time point 39.5 months. Three fillings had minor fractures during the follow-up. The overall survival rate of the restorations was 97.2% and success rate (no maintenance needed) was 88.9%, respectively.


Posterior composite restorations with a bulk base of short-fiber composite showed good clinical performance in the short term evaluation.

Keywords: Fiber-reinforced composites, Bilayered posterior composite restorations, Clinical study, Polymerization shrinkage, Cavities, Volumetric shrinkage.

Article Information

Identifiers and Pagination:

Year: 2018
Volume: 12
First Page: 476
Last Page: 485
Publisher Id: TODENTJ-12-476
DOI: 10.2174/1874210601812010476

Article History:

Received Date: 26/3/2018
Revision Received Date: 25/5/2018
Acceptance Date: 10/6/2018
Electronic publication date: 29/6/2018
Collection year: 2018

© 2018 Tanner et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to the author at the Department of Biomaterials Science, Institute of Dentistry and TCBC, University of Turku, Itäinen Pitkäkatu 4 B, FI-20520, Turku, Finland; Tel: +358 233338379; E-mail:

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