PMID: 9170999Sep 1, 1996Paper

Mechanical behavior of thermo-responsive orthodontic archwires

Dental Materials : Official Publication of the Academy of Dental Materials
W S MullinsT L Norman

Abstract

This investigation was conducted to describe the mechanical behavior of thermo-responsive nitinol archwires in flexure at 5 degrees and 37 degrees C. Four same-sized (but different force level) rectangular archwires were examined using a three-point bend test. Samples were tested at 5 degrees and 37 degrees C. Linear regressions were fit to different segments of the load-deflection plots. Regression parameters of the segments and other properties were statistically analyzed. Superelastic behavior was exhibited by all wires tested at 37 degrees but not at 5 degrees C. Permanent deformation was greater at 5 degrees than 37 degrees. The initial slope of the load-deflection data averaged 1230 g/mm at 37 degrees, which was significantly different from the average at 5 degrees (500 g/mm). Loads at the apparent yield point and the loads at 1, 2, and 3 mm of deflection were greater at 37 degrees C than at 5 degrees. While the slope and length of the superelastic region were not judged to be clinically significantly different, the average load of the superelastic region was significantly different: F300 (340 g) > F200 (250 g) > F100 (180 g) and Bioforce (180 g). When loaded at 5 degrees and then unloaded at 37 degrees, the mechanical hy...Continue Reading

References

Feb 1, 1978·American Journal of Orthodontics·G F Andreasen, R E Morrow
Sep 1, 1991·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·R P Kusy
Apr 1, 1991·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·S E KhierR A Fournelle
Jul 1, 1990·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·C L HurstP V Angolkar
May 1, 1986·American Journal of Orthodontics·J G Schaus, R J Nikolai
Jul 1, 1986·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·F MiuraH Hamanaka
Jun 1, 1985·American Journal of Orthodontics·C J BurstoneJ Y Morton
Jun 1, 1971·The Journal of the American Dental Association·G F Andreasen, T B Hilleman
Feb 1, 1980·American Journal of Orthodontics·C J Burstone, A J Goldberg
Jun 1, 1995·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·T A ThayerR J DeAngelis

❮ Previous
Next ❯

Citations

Jul 25, 2008·Journal of Materials Science. Materials in Medicine·Yong Chae Jung, Jae Whan Cho
Jun 15, 2005·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Mary P WalkerKatherine S Kula
Dec 13, 2001·Dental Materials : Official Publication of the Academy of Dental Materials·M IijimaI Mizoguchi
Aug 4, 2010·The Angle Orthodontist·Yves BolenderMarie-Pierryle Filleul
May 21, 2011·Dental Materials Journal·Masahiro IijimaItaru Mizoguchi
Mar 3, 2004·Orthodontics & Craniofacial Research·Michel Dalstra, Birte Melsen
Jul 10, 2012·Journal of Orthodontics·Manoela Moraes FigueirêdoFabrício Pinelli Valarelli
Jun 8, 2001·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·M SantoroT J Cangialosi
Jan 6, 2019·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Luca LombardoGiuseppe Siciliani
Jul 12, 2017·Progress in Orthodontics·Rodrigo Hitoshi HigaManoela Fávaro Francisconi
Jul 6, 2017·Brazilian Oral Research·José Fernando Castanha HenriquesRenata Sathler

❮ 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

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
T A ThayerR J DeAngelis
American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
S E KhierR A Fournelle
American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
G AiroldiG Garattini
American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
H NakanoH Katsura
© 2021 Meta ULC. All rights reserved