Evidence map›Paper›PMID 38473568›Full record

ArticleMaterials (Basel, Switzerland)2024

The Effect of Die Material on the Crown Fracture Strength of Zirconia Crowns.

Akram Sayed Ahmed, Nathaniel C Lawson, Chin-Chuan Fu, Pranit V Bora, Edwin Kee, Amir H Nejat

Abstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 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

6 authors.

Akram Sayed AhmedDepartment of Dental Biomaterials, Faculty of Dentistry, Tanta University, Tanta 6624033, Egypt.ORCID 0000-0002-3380-2400
Nathaniel C LawsonDivision of Biomaterials, University of Alabama at Birmingham School of Dentistry, Birmingham, AL 35209, USA.ORCID 0000-0001-9684-2015
Chin-Chuan FuDivision of Prosthodontics, University of Alabama at Birmingham School of Dentistry, Birmingham, AL 35209, USA.
Pranit V BoraDivision of Biomaterials, University of Alabama at Birmingham School of Dentistry, Birmingham, AL 35209, USA.
Edwin KeeDivision of Prosthodontics, LSU School of Dentistry, New Orleans, LA 70119, USA.
Amir H NejatDivision of Prosthodontics, LSU School of Dentistry, New Orleans, LA 70119, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDetermination of the eligibility of several tooth analog materials for use in crown fracture testing.

methodsA standardized premolar crown preparation was replicated into three types of resin dies (C&B, low modulus 3D printed resin; OnX, high modulus 3D printed resin composite; and highest modulus milled resin composite). 0.8 mm zirconia crowns were bonded to the dies and the maximum fracture load of the crowns was tested. Twelve extracted human premolars were prepared to a standardized crown preparation, and duplicate dies of the prepared teeth were 3D printed out of C&B. Zirconia crowns were bonded to both the dies and natural teeth, and their fracture load was tested.

resultsThere was no statistical difference between the fracture load of zirconia crowns bonded to standardized dies of C&B (1084.5 ± 134.2 N), OnX (1112.7 ± 109.8 N) or Lava Ultimate (1137.5 ± 88.7 N) (

conclusionsThere was no difference in the static fracture load of zirconia crowns bonded to standardized resin dies with different moduli or between a low modulus resin die and natural dentin die.

Indexed as

3D printingcrown fracturezirconia

Identifiers

PMID38473568
PMCPMC10934854

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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.