Evidence map›Paper›PMID 38750289›Full record

ArticleClinical oral investigations2024

Effect of fiber-reinforced direct restorative materials on the fracture resistance of endodontically treated mandibular molars restored with a conservative endodontic cavity design.

Merve Nezir, Beyza Arslandaş Dinçtürk, Ceyda Sarı, Cemile Kedici Alp, Hanife Altınışık

Abstract read
In one paragraph

Article in Clinical oral investigations, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Fracture Resistance of Extensively Compromised Anterior Teeth Restored With Fiberglass Posts and Biomimetic Protocols: An In Vitro Study.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026
    Article
  6. Article
  7. Biomechanical Performance of Polyethylene Fibers and Fiber-Reinforced Composite Resins in Direct Restorations: A Scoping Review.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026
    Article
  8. Next-Gen Restorative Materials to Revolutionise Smiles.Bioengineering (Basel, Switzerland) · 2026
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
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  15. Article
  16. Access cavity in endodontics: Balancing precision, preservation, and clinical needs.Journal of conservative dentistry and endodontics · 2025
    Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Merve NezirDepartment of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey.ORCID 0000-0001-8902-5471
Beyza Arslandaş DinçtürkDepartment of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey.ORCID 0000-0002-3581-4210
Ceyda SarıDepartment of Restorative Dentistry, Faculty of Dentistry, İstanbul Medipol University, İstanbul, Turkey.ORCID 0000-0002-5158-3379
Cemile Kedici AlpDepartment of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey.ORCID 0000-0002-1847-1367
Hanife AltınışıkDepartment of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek, Ankara, 06510, Turkey. hanife.kamak@hotmail.com.ORCID 0000-0001-7430-4750

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to evaluate the fracture strength of teeth restored using fiber-reinforced direct restorative materials after endodontic treatment with a conservative mesio-occlusal access cavity design. MATERIALS AND

methodsA total of 100 extracted intact mandibular first molars were selected and distributed into a positive control group where teeth left intact and the following four test groups comprised of teeth with conservative mesio-occlusal access cavities that had undergone root canal treatment (n = 20/group): access cavity without restoration (negative control), bulk-fill resin composite with horizontal glass fiber post reinforcement, fiber-reinforced composite with bulk-fill resin and bulk-fill resin composite. Following thermocycling (10,000 cycles), fracture resistance was measured using a universal testing machine. Statistical analyses (one-way analysis of variance and the Tamhane test) were performed, and statistical significance was set at p < 0.05.

resultsGroups with minimally invasive access cavities had lower fracture strength than intact teeth, regardless of the restoration material (p < 0.05). Fiber-reinforced composite groups demonstrated higher fracture strength than bulk-fill resin composite alone (p < 0.05). Fracture types varied among groups, with restorable fractures predominant in the fiber-reinforced composite groups.

conclusionThis study suggests that using fiber-reinforced composite materials, especially in combination with bulk-fill resin composites, can effectively enhance the fracture strength of endodontically treated teeth with conservative access cavities. However, using only bulk-fill resin composite is not recommended based on the fracture strength results. CLINICAL SIGNIFICANCE: When teeth that undergo endodontic treatment are restored using a conservative access cavity design and fiber-reinforced composite materials, especially in combination with bulk-fill resin composites, the fracture strength of the teeth can be effectively increased.

Indexed as

Composite ResinsDental Restoration, PermanentDental Stress AnalysisMolarTooth FracturesTooth, NonvitalDental Cavity PreparationDental MaterialsGlassHumansIn Vitro TechniquesMandibleMaterials TestingPost and Core TechniqueRoot Canal TherapyComposite ResinsDental MaterialsAccess cavityBulk-fillEndodontic treatmentFiberResin composite

Identifiers

PMID38750289
PMCPMC11096213

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.