Evidence map›Paper›PMID 39923024›Full record

ArticleBMC oral health2025

Effect of different restorative design on stress concentration of lithium disilicate and monolithic zirconia endocrown on a mandibular molar - a finite element analysis.

Garima Karn, Manoj Shetty, Chethan Hegde

Abstract read
In one paragraph

Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

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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

3 authors.

Garima KarnDepartment of Prosthodontics, Crown and Bridge, A. B. Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University Derlakatte, Mangalore, 575018, India. garimakarn2996@gmail.com.
Manoj ShettyDepartment of Prosthodontics, Crown and Bridge, A. B. Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University Derlakatte, Mangalore, 575018, India. drmanojshetty@nitte.edu.in.
Chethan HegdeDepartment of Prosthodontics, Crown and Bridge, A. B. Shetty Memorial Institute of Dental Sciences, NITTE Deemed to be University Derlakatte, Mangalore, 575018, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this simulation study was to evaluate effect of different restorative design on stress concentration of endocrown. Different restorative materials were used on a mandibular molar using a finite element analysis.

methodsA 3D FEA model of mandibular molar was constructed using the average values and was used in this analysis. 2 materials were used which were lithium disilicate and zirconia and 2 different margin design of knife edge and shoulder margins were used in various combinations of material and margin design. A constant 12° of internal wall angulation was considered for all the 4 models and a uniform cement thicknes of 100 μm was considered. A uniform 2 mm of bulk fill composite was used as a base beneath the endocrowns. 300 N load was applied on the cusps for each model and linear static analysis was carried out.

resultsEndocrowns of lithium disilicate was found to exert a greater stress concentration in comparison to zirconia endocrowns in both the margin designs of knife edge and shoulder. Knife edge margins were seen to yield greater stress concentration on the remaining tooth structure in comparison to shoulder margins in endocrowns of both the materials used.

conclusionThere is a positive influence of margin design selection within the same material used for the fabrication of endocrown.

Indexed as

CrownsDental MaterialsDental PorcelainDental Prosthesis DesignDental Restoration, PermanentDental Stress AnalysisMolarZirconiumFinite Element AnalysisHumansMandibleMaterials TestingDental MaterialsDental Porcelainlithia disilicateZirconiumzirconium oxideEndocrownEndodontically treated teethKnife edge marginsLithium disilicateShoulder marginsZirconia

Identifiers

PMID39923024
PMCPMC11806583

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Registered trials

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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.