ArticleBMC oral health2023
Comparative evaluation of internal fit and marginal gap of endocrowns using lithium disilicate and polyether ether ketone materials - an in vitro study.
Article in BMC oral health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
What it found
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.
- Marginal and internal fit of CAD/CAM restorations with CAD-defined cement space: a meta-analysis of micro-CT studies.BMC oral health · 2026Pooled it
- A Comparative Analysis of Marginal Adaptation Values between Lithium Disilicate Glass Ceramics and Zirconia-Reinforced Lithium Silicate Endocrowns: A Systematic Review of In Vitro Studies.Medical science monitor : international medical journal of experimental and clinical research · 2023Pooled it
- From milling to printing: evaluating the applicability of zirconia in restorative dentistry.The journal of advanced prosthodontics · 2026Article
- The property of a root-extended Ti-6Al-4V endocrown utilizing 3D printing for a four-wall defect in endodontically treated molars: An in vitro study.BMC oral health · 2026Article
- Impact of Thermomechanical Aging on Marginal Fit and Fracture Resistance of CAD/CAM Endocrowns Fabricated from Different Materials.Polymers · 2026Article
- Effect of Pulpal Base, Restorative Material, and Preparation Type on Marginal and Internal Fit and Fracture Strength of Endocrowns.Materials (Basel, Switzerland) · 2025Article
- The trueness of CAD-CAM custom-milled post-and-cores: a comparison of three materials and two milling systems.European oral research · 2025Article
- Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique.Clinical and experimental dental research · 2025Article
- Micro CT evaluation of marginal discrepancies of endocrown restored molars with different intrapulpal depths and materials of fabrication. (in-vitro study).BMC oral health · 2025Article
- Article
- Application of one-piece endodontic crowns fabricated with CAD-CAM system to molars.The Japanese dental science review · 2024Review
- Review
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe aim of the study was to investigate the effect of material and occlusal preparation design on the internal fit and marginal gap of endocrowns made of Polyether ether ketone (PEEK) and lithium disilicate.
methods32 endocrowns were fabricated on prepared mandibular molars and divided into two groups (n = 16) according to the material. Group L: lithium disilicate and Group P: PEEK. Each group was further subdivided into two subgroups (n = 8) according to the occlusal preparation design: full occlusal coverage (LF and PF) and partial occlusal coverage (LP and PP). Samples were analyzed using microcomputed tomography (µCT) with a voxel size of 6 μm to evaluate internal fit, and an optical microscope was used to evaluate the marginal gap. Data were collected, tabulated, and statistically analyzed. Numerical data were described as mean and standard deviation and compared using the ANOVA test. The level of significance was set at α P ≤ 0.05.
resultsAll groups' internal fit and marginal gaps values were within the acceptable clinical range. However, the lithium disilicates group recorded statistically significantly higher mean internal gap values than the PEEK groups. Regardless of the material, the difference between the two occlusal designs was not statistically significant in both internal fit and marginal gap records.
conclusionWithin the limitations of this study, PEEK endocrown restorations revealed better internal fit and marginal gap than lithium disilicate endocrown restorations. The marginal and internal fit of both lithium disilicate and PEEK endocrown restorations were within the clinically acceptable range. The occlusal preparation design had no influence on the internal fit and marginal gap of the endocrown restoration.
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Registered trials
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.