Effect of Tooth Preparation Design on Fracture Resistance of Zirconia-Reinforced Lithium Silicate Overlays

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
Mehran FalahchaiElnaz Rezaei

Abstract

To assess the effect of tooth preparation design on fracture resistance of zirconia-reinforced lithium silicate overlays. This study evaluated 50 human maxillary first molars with no caries, restorations or anatomical defects. The teeth were randomly divided into five groups (n = 10/group) based on preparation design for the fabrication of overlay restorations: (O) anatomical occlusal reduction, (OS) anatomical occlusal reduction with round shoulder preparation, (OG) anatomical occlusal reduction with a central groove, (OSG) anatomical occlusal reduction with round shoulder preparation and central groove, and (C) no preparation of tooth (control group). All restorations were fabricated using zirconia-reinforced lithium silicate (Vita Suprinity). The specimens underwent thermomechanical fatigue loading in a masticatory simulator (1.2 million cycles at 98 N). Fracture resistance was measured using a universal testing machine. The mode of failure was determined as well. Data were analyzed using one-way ANOVA followed by Tukey's post-hoc test, paired t-test and Fisher's exact test (α = 0.05). Group O showed significantly higher fracture resistance than groups OG and OSG (P = 0.002 and P = 0.001, respectively). The fracture resistan...Continue Reading

References

Feb 1, 1986·The Journal of the American Dental Association·W S EakleB V Braly
Jan 1, 1985·The Journal of Prosthetic Dentistry·W T CavelR J Blankenau
Jun 19, 2002·The Journal of Prosthetic Dentistry·Daniel Edelhoff, John A Sorensen
Nov 7, 2002·International Dental Journal·Sverker Toreskog
Jun 20, 2003·The Journal of Prosthetic Dentistry·Annie J St-GeorgesJeffrey Y Thompson
Apr 28, 2006·The Journal of the American Dental Association·Christian F J StappertJoerg R Strub
Jun 13, 2006·The Journal of Prosthetic Dentistry·Carlos Jose SoaresAlfredo Julio Fernandes Neto
Feb 26, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·Jan-Ole ClausenMatthias Kern
Sep 4, 2010·The Journal of Prosthetic Dentistry·Pascal MagneLuiz Narciso Baratieri
Jun 14, 2013·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Coskun YildizYasemin Kulak-Ozkan
Mar 19, 2014·Journal of Prosthodontic Research·Andrew C JohnsonSwati Ahuja
Oct 3, 2014·Journal of Dental Research·I Denry, J R Kelly
Jun 9, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Martin SasseMatthias Kern
Jun 21, 2017·Journal of the Mechanical Behavior of Biomedical Materials·Majed Al-AkhaliMatthias Kern
Aug 28, 2017·Journal of the Mechanical Behavior of Biomedical Materials·Christine YazigiMohamed Sad Chaar
Mar 29, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Jaiane Bandoli MonteiroLuiz Felipe Valandro
Jun 12, 2018·Nigerian Journal of Clinical Practice·P Oyar, R Durkan
Jun 24, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·F O Abu-IzzeM A Bottino
Dec 6, 2018·Brazilian Oral Research·João Paulo Mendes TribstMarco Antonio Bottino
Feb 4, 2019·The Journal of Prosthetic Dentistry·Majed Al-AkhaliMohamed Sad Chaar

❮ Previous
Next ❯

Citations

Aug 19, 2020·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Mehran FalahchaiMarzieh Neshandar Asli
Jan 8, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Guilherme Schmitt de AndradeGuilherme de Siqueira Ferreira Anzaloni Saavedra
May 1, 2021·Materials·Ana Beatriz Gomes de CarvalhoAlexandre Luiz Souto Borges
Apr 18, 2021·Journal of Dentistry·Fernando ZaroneRoberto Sorrentino

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of the Mechanical Behavior of Biomedical Materials
Majed Al-AkhaliMatthias Kern
The Journal of Prosthetic Dentistry
Christopher D Lynch, Robert J McConnell
Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
Tamer A Hamza, Rana M Sherif
© 2021 Meta ULC. All rights reserved