The Open Dentistry Journal

ISSN: 1874-2106 ― Volume 14, 2020

Preliminary Clinical Evaluation of Short Fiber-Reinforced Composite Resin in Posterior Teeth: 12-Months Report

S Garoushi1, 2, *, J Tanner2, 3, PK Vallittu1, 2, L Lassila1, 2
1 Department of Biomaterials Science, Institute of Dentistry, University of Turku, Turku, Finland
2 BioCity Turku Biomaterials Research Program and Turku Clinical Biomaterials Centre – TCBC, Finland
3 Department of Prosthetic Dentistry, Institute of Dentistry, University of Turku, Turku, Finland


This preliminary clinical trial evaluated 12 month clinical performance of novel filling composite resin system which combines short fiber-reinforced composite resin and conventional particulate filler composite resin in high stress bearing applications. A total of 37 class I and II restorations (compound and complex type) were placed in 6 premolars and 31 molars. The restorations were reviewed clinically at 6 months (baseline) and 12 months using modified USPHS codes change criteria for marginal adaptation, post-operative sensitivity, pulpal pain and secondary caries criteria. Photographs and x-rays were obtained for restorative analysis. Results of 12 months evaluation showed 5 restorations having little marginal leakage (B score) and 1 patient had minor pulpal symptom and post-operative sensitivity (B score). No secondary caries or bulk fracture was detected. The majority of restorations exhibited A scores of the evaluated criteria. After 12 months, restorations combining base of short fiber reinforced composite resin as substructure and surface layer of hybrid composite resin displayed promising performance in high load bearing areas.

Keywords: Short fiber reinforced composite, clinical trial, posterior restoration.

Article Information

Identifiers and Pagination:

Year: 2012
Volume: 6
First Page: 41
Last Page: 45
Publisher Id: TODENTJ-6-41
DOI: 10.2174/1874210601206010041

Article History:

Received Date: 05/11/2011
Revision Received Date: 30/12/2011
Acceptance Date: 30/12/2011
Electronic publication date: 6/1/2012
Collection year: 2012

© Garoushi et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Biomaterials Science Institute of Dentistry and BioCity Turku Biomaterials Research Program University of Turku Turku, Finland; Tel: + 358 504063976; Fax: +358 2 333 83 90; E-mail:

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