Effect of storage and aging conditions on the flexural strength and flexural modulus of CAD/CAM materials

Thiago Soares Porto; Renato Cassio Roperto; Anna Akkus; Ozan Akkus; Sorin Teich; Fady Faddoul; Sizenando Toledo Porto-neto; Edson Alves Campos

doi:10.4012/dmj.2018-111

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Effect of storage and aging conditions on the flexural strength and flexural modulus of CAD/CAM materials

Journal article

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Peer reviewed

Effect of storage and aging conditions on the flexural strength and flexural modulus of CAD/CAM materials

Thiago Soares Porto, Renato Cassio Roperto, Anna Akkus, Ozan Akkus, Sorin Teich, Fady Faddoul, Sizenando Toledo Porto-neto and Edson Alves Campos

Dental materials journal, Vol.38(2), pp.264-270

01/01/2019

DOI: 10.4012/dmj.2018-111

PMID: 30541991

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Abstract

Computer-aided design/computer-aided manufacturing (CAD/CAM) materials were submitted to thermocycling, to identify changes in mechanical behavior. Four CAD/CAM materials were divided in four subordinate groups (n=9): (1) dry out for 7 days, (2) distilled water at 37 degrees C for 7 days, (3) 60,000 thermocycles, and (4) 120,000 thermocycles. Following thermocycling, samples were submitted to three-point bending test. Two-way ANOVA and post-hoc Tukey's test were performed (alpha=0.05). The IPS e.max CAD had a flexural strength of 396 +/- 75 MPa and flexural modulus of 84 +/- 11 GPa, followed by Vita Enamic with values of 153 +/- 17 MPa and 28 +/- 5 GPa respectively. The flexural strength recorded for Lava Ultimate was 149 +/- 28 MPa and the flexural modulus was 12 +/- 3 GPa. Vitablocs Mark II had the lowest flexural strength values (125 +/- 10 MPa) and a flexural modulus of 49 +/- 15 GPa. Although polymer-based materials have similar mechanical properties compared to ceramics, they are affected by thermo cycling conditions.

Materials Science

Technology

Dentistry, Oral Surgery & Medicine

Life Sciences & Biomedicine

Materials Science, Biomaterials

Science & Technology

Details

Title: Subtitle: Effect of storage and aging conditions on the flexural strength and flexural modulus of CAD/CAM materials
Creators: Thiago Soares Porto - Case Western Reserve University
Renato Cassio Roperto - Case Western Reserve University
Anna Akkus - Case Western Reserve University
Ozan Akkus - Case Western Reserve University
Sorin Teich - Case Western Reserve University
Fady Faddoul - Case Western Reserve University
Sizenando Toledo Porto-neto - Universidade Estadual Paulista (Unesp)
Edson Alves Campos - Universidade Estadual Paulista (Unesp)
Resource Type: Journal article
Publication Details: Dental materials journal, Vol.38(2), pp.264-270
DOI: 10.4012/dmj.2018-111
PMID: 30541991
NLM abbreviation: Dent Mater J
ISSN: 0287-4547
eISSN: 1881-1361
Publisher: Japanese Soc Dental Materials Devices
Number of pages: 7
Grant note: 99999.008214/201400 / CAPES-Brazil as part of the PhD program form the Sao Paulo State University- UNESP-Araraquara Faculty of Dentistry
Language: English
Date published: 01/01/2019
Academic Unit: Operative Dentistry
Record Identifier: 9984420846402771

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