JDSE
Journal of Dental Sciences and Education

The Journal of Dental Sciences and Education deals with General Dentistry, Pediatric Dentistry, Restorative Dentistry, Orthodontics, Oral diagnosis and DentomaxilloFacial Radiology, Endodontics, Prosthetic Dentistry, Periodontology, Oral and Maxillofacial Surgery, Oral Implantology, Dental Education and other dentistry fields and accepts articles on these topics. Journal of Dental Science and Education publishes original research articles, review articles, case reports, editorial commentaries, letters to the editor, educational articles, and conference/meeting announcements.

eISSN: 2980-1389
Creative Commons CC BY-NC-ND 4.0 International License.
EndNote Style

Online Manuscript System

Index
Case Report
Fiber-reinforced direct restoration of an endodontically treated molar using polyethylene ribbon and short fiber-reinforced composite: a case report
Abstract
Restoring endodontically treated posterior teeth with extensive tissue loss is challenging because of reduced structure and shrinkage stress. This report describes a residual-wall-thickness-guided fiber-reinforced direct restoration. A maxillary left first molar in a 45-year-old man, root-canal treated and restored nine years earlier without fiber reinforcement or cuspal coverage, showed cavitated secondary caries at both proximal margins. Caries removal left a wide mesio-occluso-distal cavity with a 1.5-mm residual palatal wall. Under rubber dam, the canal orifices were sealed and a polyethylene ribbon with a short fiber-reinforced composite base placed. The thinned palatal cusps were covered, the enamel-intact buccal cusps preserved, and the surface finished with supra-nano composite. At 1 month all FDI World Dental Federation (FDI) parameters were clinically excellent; at 6 months only surface staining changed, without fracture or retention loss. These findings document early clinical behavior only; longer follow-up is needed before recommending this approach over indirect restorations.

Keywords : Root canal therapy, composite resins, dental restoration failure, polyethylene, short-fiber-reinforced composite

Download Article
Informed Consent

Written informed consent was obtained from the patient included in this report. Signed consent forms are retained by the authors and are available upon request.

Author Contributions

The author is solely responsible for the entirety of conception, execution, analysis, and writing of the manuscript.

Conflict of Interest

The author declares no conflicts of interest.

Financial Disclosure

This case report did not receive any financial support.

Editor Note

Candan Aydın Hoş is a member of the Editorial Board of this journal. She was not involved in the editor assignment, reviewer selection, peer review process, or editorial decision for this manuscript. The peer review process was managed independently by another editor.


1. Tang W, Wu Y, Smales RJ. Identifying and reducing risks for potential fractures in endodontically treated teeth. J Endod. 2010;36(4):609-617. doi:10.1016/j.joen.2009.12.002
2. Reeh ES, Messer HH, Douglas WH. Reduction in tooth stiffness as a result of endodontic and restorative procedures. J Endod. 1989;15(11):512-516. doi:10.1016/S0099-2399(89)80191-8
3. Askar H, Krois J, Göstemeyer G, et al. Secondary caries: what is it, and how it can be controlled, detected, and managed? Clin Oral Investig. 2020;24(5):1869-1876. doi:10.1007/s00784-020-03268-7
4. Opdam NJ, van de Sande FH, Bronkhorst E, et al. Longevity of posterior composite restorations: a systematic review and meta-analysis. J Dent Res. 2014;93(10):943-949. doi:10.1177/0022034514544217
5. Demarco FF, Cenci MS, Montagner AF, et al. Longevity of composite restorations is definitely not only about materials. Dent Mater. 2023; 39(1):1-12. doi:10.1016/j.dental.2022.11.009
6. Bhuva B, Giovarruscio M, Rahim N, Bitter K, Mannocci F. The restoration of root filled teeth: a review of the clinical literature. Int Endod J. 2021;54(4):509-535. doi:10.1111/iej.13438
7. Ayna E, Çelik Köycü B, Uçar Y. Effect of short fiber-reinforced composite combined with polyethylene fibers on fracture resistance of endodontically treated premolars. J Prosthet Dent. 2023;129(4):598.e1-598.e10. doi:10.1016/j.prosdent.2023.01.034
8. Garoushi S, Säilynoja E, Vallittu PK, Lassila L. Physical properties and depth of cure of a new short fiber reinforced composite. Dent Mater. 2013;29(8):835-841. doi:10.1016/j.dental.2013.04.016
9. Gagnier JJ, Kienle G, Altman DG, et al. The CARE guidelines: consensus-based clinical case report guideline development. J Clin Epidemiol. 2014;67(1):46-51. doi:10.1016/j.jclinepi.2013.08.003
10. Hickel R, Peschke A, Tyas M, et al. FDI World Dental Federation: clinical criteria for the evaluation of direct and indirect restorations-update and clinical examples. Clin Oral Investig. 2010;14(4):349-366. doi:10.1007/s00784-010-0432-8
11. Feilzer AJ, De Gee AJ, Davidson CL. Setting stress in composite resin in relation to configuration of the restoration. J Dent Res. 1987;66(11):1636-1639. doi:10.1177/00220345870660110601
12. Soares LM, Razaghy M, Magne P. Optimization of large MOD restorations: composite resin inlays vs. short fiber-reinforced direct restorations. Dent Mater. 2018;34(4):587-597. doi:10.1016/j.dental.2018.01.004
13. Yüksek MA, Kedici Alp C, Sarı C, Bala O. Influence of cusp reduction and fiber reinforcement on cusp deflection and fracture strength of restored endodontically treated molar teeth. Clin Oral Investig. 2025; 29(4):220. doi:10.1007/s00784-025-06297-2
14. Krifka S, Anthofer T, Fritzsch M, Hiller KA, Schmalz G, Federlin M. Ceramic inlays and partial ceramic crowns: influence of remaining cusp wall thickness on the marginal integrity and enamel crack formation in vitro. Oper Dent. 2009;34(1):32-42. doi:10.2341/08-34
15. Scotti N, Rota R, Scansetti M, et al. Influence of adhesive techniques on fracture resistance of endodontically treated premolars with various residual wall thicknesses. J Prosthet Dent. 2013;110(5):376-382. doi:10.1016/j.prosdent.2013.08.001
16. Sellan PLB, Campaner LM, Tribst JPM, et al. Functional or nonfunctional cusps preservation for molars restored with indirect composite or glass-ceramic onlays: 3D FEA study. Polymers (Basel). 2021;13(21):3831. doi:10.3390/polym13213831
17. ElAziz RH, Mohammed MM, Gomaa HAF. Clinical performance of short-fiber-reinforced resin composite restorations vs resin composite onlay restorations in complex cavities of molars (randomized clinical trial). J Contemp Dent Pract. 2020;21(3):296-303. doi:10.5005/jp-journals-10024-2785
18. Fernández E, Díaz L, Bersezio C, Martín J, Cabello R, Angel P. Efficacy of short fiber-reinforced composite resins in MOD and endodontically treated posterior teeth: a systematic review. J Esthet Restor Dent. 2026; 38(2):268-286. doi:10.1111/jerd.70046
19. Lassila L, Keulemans F, Vallittu PK, Garoushi S. Characterization of restorative short-fiber reinforced dental composites. Dent Mater J. 2020; 39(6):992-999. doi:10.4012/dmj.2019-088
Article available in :
Volume 4, Issue 4, 2026
Page : 168-171
https://doi.org/10.51271/JDSE-0094
Article Information
Received : 31 Aug 2026
Accepted : 15 Oct 2026
Published : 28 Oct 2026
Corresponding Author :

Candan Aydın Hoş: Department of Restorative Dentistry, Faculty of Dentistry, Bolu Abant İzzet Baysal University, Bolu, Turkiye

[email protected]
Citation : Aydın Hoş C. Fiber-reinforced direct restoration of an endodontically treated molar using polyethylene ribbon and short fiber-reinforced composite: a case report. J Dent Sci Educ. 2026;4(4):168-171. doi:10.51271/JDSE-0094

Read: 4
Download : 1
Cited: 0
_Footer