Residual stresses in porcelain-veneered zirconia prostheses.

Dental Materials : Official Publication of the Academy of Dental Materials
Marta BaldassarriYu Zhang

Abstract

Compressive stress has been intentionally introduced into the overlay porcelain of zirconia-ceramic prostheses to prevent veneer fracture. However, recent theoretical analysis has predicted that the residual stresses in the porcelain may be also tensile in nature. This study aims to determine the type and magnitude of the residual stresses in the porcelain veneers of full-contour fixed-dental prostheses (FDPs) with an anatomic zirconia coping design and in control porcelain with the zirconia removed using a well-established Vickers indentation method. Six 3-unit zirconia FDPs were manufactured (NobelBiocare, Gothenburg, Sweden). Porcelain was hand-veneered using a slow cooling rate. Each FDP was sectioned parallel to the occlusal plane for Vickers indentations (n = 143; load = 9.8 N; dwell time = 5s). Tests were performed in the veneer of porcelain-zirconia specimens (bilayers, n=4) and porcelain specimens without zirconia cores (monolayers, n = 2). The average crack lengths and standard deviation, in the transverse and radial directions (i.e. parallel and perpendicular to the veneer/core interface, respectively), were 67 ± 12 μm and 52 ± 8 μm for the bilayers and 64 ± 8 μm and 64 ± 7 μm for the monolayers. These results indica...Continue Reading

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Citations

Aug 21, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Júlia M C LimaRodrigo O A Souza
Oct 22, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Yu ZhangBrian R Lawn
Dec 24, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Basil Al-AmlehMichael V Swain
Feb 3, 2016·Dental Materials Journal·Potchaman SinavaratThitima Muanjit
Apr 9, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Josete B C MeiraMichael V Swain
Jul 24, 2012·Dental Materials : Official Publication of the Academy of Dental Materials·Christopher S MillenRichard J Ibbetson
Apr 5, 2016·Journal of the Mechanical Behavior of Biomedical Materials·Michael WendlerUlrich Lohbauer
Aug 4, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Zhen PangYu Zhang
May 20, 2015·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Zhongxiao PengLing Yin
Oct 19, 2013·Journal of Dentistry·Yu ZhangBrian R Lawn
May 27, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·A VichiM Ferrari
Jun 4, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Michael WendlerUlrich Lohbauer
Feb 14, 2015·Journal of Dentistry·P H CorazzaA Della Bona
Dec 4, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Vitor G PaulaGerson Bonfante
Feb 18, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Ramanathan SrikanthYu Zhang
Apr 29, 2016·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Arvind TripathiMahendra Pal Singh Negi
Oct 7, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·P D MeirellesP Benetti
Jan 11, 2017·Dental Materials : Official Publication of the Academy of Dental Materials·Iana L AurélioLiliana G May
Oct 27, 2017·Journal of Applied Oral Science : Revista FOB·Viviane Maria Gonçalves de FigueiredoRenata Marques de Melo
Dec 14, 2017·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Caroline Cantieri de MelloMarcelo Coelho Goiato
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Jun 12, 2013·The Journal of Advanced Prosthodontics·Taek-Ka KwonIn-Sung Yeo
May 23, 2020·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Potira Dalques MeirellesPaula Benetti
Aug 20, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Arthur Furtado de MendoncaAyman Ellakwa
Nov 25, 2019·Journal of the Mechanical Behavior of Biomedical Materials·Sukirti DhitalJeongho Kim
Sep 3, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Yu Zhang, Brian R Lawn
Dec 1, 2017·Dental Materials : Official Publication of the Academy of Dental Materials·Herzl ChaiYu Zhang
Apr 6, 2018·Journal of the Mechanical Behavior of Biomedical Materials·Jeongho KimYu Zhang
Aug 12, 2019·Dental Materials : Official Publication of the Academy of Dental Materials·Carina B TanakaJamie J Kruzic
Apr 2, 2019·Dental Materials : Official Publication of the Academy of Dental Materials·Michael WendlerUlrich Lohbauer
Jul 23, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Sukirti DhitalJeongho Kim
Jul 13, 2021·Operative Dentistry·A R OliveiraG A Galhano

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