A comparison of tapered and cylindrical miniscrew stability

European Journal of Orthodontics
Seong-Hun YooJung-Yul Cha

Abstract

This study compared the stability of tapered miniscrews with cylindrical miniscrews. One hundred and five tapered and 122 cylindrical self-drilling miniscrews were placed into the maxillary and mandibular buccal alveolar areas of 132 patients (43 males and 89 females). The insertion torque and removal torque were measured and Periotest values (PTVs) were recorded at implantation. The success rates of the tapered and cylindrical miniscrews examined were similar. In the maxilla, the insertion torque of the tapered miniscrews (8.3 Ncm) was significantly higher than that of the cylindrical miniscrews (6.3 Ncm) (P < 0.05). The PTVs of the tapered miniscrews were statistically significantly lower in the maxilla (P < 0.05). The removal torque values showed no significant difference between the tapered and cylindrical miniscrews in the upper and lower buccal areas (P > 0.05). Tapered miniscrews had higher initial stability when compared to cylindrical miniscrews, whereas the clinical success rates and removal torques were similar between the two designs. The long-term stability is not directly affected by the miniscrew design.

References

Apr 1, 1997·International Journal of Oral and Maxillofacial Surgery·C J IvanoffU Lekholm
Oct 16, 2003·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Shouichi MiyawakiTeruko Takano-Yamamoto
Jan 31, 2006·Clinical Oral Implants Research·Mitsuru MotoyoshiNoriyoshi Shimizu
May 13, 2006·International Journal of Oral and Maxillofacial Surgery·Y-C TsengC-M Chen
Jul 18, 2008·European Journal of Orthodontics·K AsscherickxM M Sabzevar
Aug 14, 2008·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Ju-Eun LimYoon Sic Chun
Feb 4, 2010·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Jung-Yul ChaChung-Ju Hwang
May 11, 2010·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Mitsuru MotoyoshiNoriyoshi Shimizu
Sep 28, 2010·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Eduardo Yugo SuzukiNarumanas Kowanich
Nov 6, 2010·International Journal of Oral and Maxillofacial Surgery·M M PithonL I Nojima
Apr 5, 2011·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·David FarnsworthPeter H Buschang
May 4, 2011·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Eduardo Yugo Suzuki, Boonsiva Suzuki

❮ Previous
Next ❯

Citations

Sep 18, 2016·The Kaohsiung Journal of Medical Sciences·Yu-Chuan TsengHong-Sen Chen
Jan 10, 2018·European Journal of Orthodontics·Fahad AlharbiDavid Bearn
Oct 9, 2019·Journal of Dental Research, Dental Clinics, Dental Prospects·Amir Hooman Sadr HaghighiTannaz Abdollahzadeh Baghaei
Apr 17, 2016·L' Orthodontie française·Grégoria MerOlivier Sorel
Feb 1, 2017·The Kaohsiung Journal of Medical Sciences·Yu-Chuan TsengChun-Ming Chen
Jun 29, 2021·The Angle Orthodontist·Yeji LeeJung-Yul Cha
Jul 6, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Vahid PouyafarAli Navid

❮ 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

The International Journal of Oral & Maxillofacial Implants
Jung-Yul ChaChung-Ju Hwang
American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
Yu-Chih Wang, Eric J W Liou
© 2021 Meta ULC. All rights reserved