Evidence map›Paper›PMID 40517061›Full record

ArticleDental materials : official publication of the Academy of Dental Materials2025

Fractal analysis in different regions of a fracture surface in a dental glass-ceramic.

Kartikeya S Jodha, Susana M Salazar Marocho, John J Mecholsky, Seth T Lirette, Yuanyuan Duan, Jason A Griggs

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Article in Dental materials : official publication of the Academy of Dental Materials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Kartikeya S JodhaDepartment of Biomedical Materials Science, University of Mississippi Medical Center, MS, USA.
Susana M Salazar MarochoDepartment of Biomedical Materials Science, University of Mississippi Medical Center, MS, USA.
John J MecholskyDepartment of Materials Science and Engineering, Herbert Wertheim College of Engineering, University of Florida, USA.
Seth T LiretteDepartment of Data Science, University of Mississippi Medical Center, MS, USA.
Yuanyuan DuanDepartment of Biomedical Materials Science, University of Mississippi Medical Center, MS, USA.
Jason A GriggsDepartment of Biomedical Materials Science, University of Mississippi Medical Center, MS, USA. Electronic address: jgriggs@umc.edu.

Funding

Fractal Analysis of Ceramic FPDsR01DE024333 · NIDCR · UNIVERSITY OF MISSISSIPPI MED CTR · PI GRIGGS, JASON A · 2015 to 2019
$1.9M
NIDCR NIH HHS R01 DE024333
6 · The paper itself

Abstract

objectivesPrevious studies have reported the fractal dimension of dental ceramic fracture surfaces from mist and hackle regions. The aim of this study was to determine and compare the fractal dimensional increment between the mirror, mist, and hackle regions of lithium disilicate fracture surfaces.

methodsNine bar-shaped specimens were prepared from lithium disilicate glass-ceramic. One face of each specimen was indented using a Knoop diamond at 10 N followed by loading in 4-point flexure until failure at a loading rate of 12.6 MPa/s to avoid environmental slow crack growth. Fracture surfaces were replicated in epoxy, and an atomic force microscope (AFM) was used to scan the replicas. Noise in scans was reduced by Laplace transform filter. The FRACTALS software was used to determine the fractal dimensional increment (D*) by the Minkowski cover algorithm.

resultsMedian D values (25 %, 75 % quartiles) from mirror, mist, and hackle regions were 2.14 (2.12, 2.14), 2.14 (2.12, 2.15), and 2.14 (2.12, 2.15), respectively. A multilevel mixed model with clustering on repeated measures showed that the fractal dimension between the mirror-mist (p = 0.51), mist-hackle (p = 0.90), and mirror-hackle (p = 0.43) regions are not significantly different. SIGNIFICANCE: Fractal dimension in mirror, mist, and hackle regions of the fracture surface were not significantly different in lithia disilicate glass-ceramics. Any portion of the primary fracture surface can be analyzed using fractal analysis to investigate the conditions present at the time of failure.

Indexed as

CeramicsDental PorcelainDental Restoration FailureFractalsAlgorithmsDental Stress AnalysisMaterials TestingMicroscopy, Atomic ForceSurface PropertiesDental PorcelainGlass ceramicslithia disilicateAtomic force microscopyFailure analysisFractal geometryFractography

Identifiers

PMID40517061
PMCPMC13224731

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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.