Abstract
Miniscrews often loosen during orthodontic treatment, especially in teenage patients. The purposes of this study were to explore the differences of the pullout strengths of miniscrews placed in the anterior mandibles of adolescent and adult dogs and the structural parameters of peri-miniscrew bone, and to analyze the correlation between the pullout strengths and the variables of the peri-miniscrew bone structure. Eight adult beagles and 8 young beagles with early permanent dentitions were used as experimental subjects. Two miniscrews were symmetrically placed in the anterior mandible of each dog several minutes before death. The bone density, relative bone volume, and cortical bone thickness were evaluated by micro-computed tomography, and the pullout strength of the miniscrew was tested with a testing machine. Regression analyses were used to study the relationship between pullout strength and bone density, relative bone volume, and cortical bone thickness. The values of bone density, relative bone volume, cortical bone thickness, and pullout strength were 781.94 + or - 21.46 mg of hydroxyapatite per cubic centimeter, 0.62 + or - 0.33, 1.14 + or - 0.11 mm, and 218.40 + or - 24.50 N for the adult dogs; and 713.61 + or - 13.08 m...Continue Reading
References
Jan 1, 1981·Acta Orthopaedica Scandinavica·T AlbrektssonJ Lindström
Jan 1, 1996·Calcified Tissue International·P RüegseggerR Müller
Dec 15, 1995·European Journal of Radiology·H DinçE Tuncel
Feb 11, 1999·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 UmemoriH Kawamura
Apr 6, 2000·Spine·K OkuyamaK Sato
Aug 8, 2001·Clinical Oral Implants Research·J W FreudenthalerH P Bantleon
Apr 24, 2003·Journal of Dental Research·T DeguchiL P Garetto
Aug 17, 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·Jong-Wan KimYoung-Il Chang
Nov 23, 2005·Bone·Cedo M BagiAndres Laib
Feb 28, 2006·Clinical Biomechanics·Suneel BattulaGlen O Njus
Apr 18, 2006·Bone·Yankel GabetDavid Kohavi
May 13, 2006·International Journal of Oral and Maxillofacial Surgery·Y-C TsengC-M Chen
Jul 20, 2006·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Hyo-Sang ParkOh-Won Kwon
Jan 9, 2007·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Shingo KurodaTeruko Takano-Yamamoto
May 25, 2007·International Journal of Oral and Maxillofacial Surgery·M MotoyoshiN Shimizu
Aug 19, 2007·Bone·Helen R BuieSteven K Boyd
Jan 5, 2008·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Hyo-Sang ParkTae-Geon Kwon
Feb 7, 2008·The Angle Orthodontist·Seon-A LimChung-Ju Hwang
Citations
Mar 4, 2011·European Journal of Orthodontics·M MiglioratiA Silvestrini-Biavati
Mar 8, 2011·European Journal of Orthodontics·Elisabeth HofmannUrsula Hirschfelder
Jan 24, 2012·European Journal of Orthodontics·Marco MiglioratiA Silvestrini Biavati
Oct 15, 2013·PloS One·Kerstin GritschBrigitte Grosgogeat
Dec 14, 2011·The Angle Orthodontist·Ankit H ShahPeter H Buschang
May 4, 2011·The Angle Orthodontist·Xing WeiZhihe Zhao
Jul 19, 2013·Clinical Oral Investigations·Joseph W PittmanDo-Gyoon Kim
Jun 27, 2014·European Journal of Dentistry·Murat TozluFulya Ozdemir
Mar 5, 2016·The Journal of the Acoustical Society of America·Romain VayronGuillaume Haïat
Aug 4, 2012·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Marco MiglioratiArmando Silvestrini-Biavati
Apr 3, 2012·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Te-Chun LiuJia-Kuang Liu
Apr 3, 2012·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 Brooke ShankSarandeep S Huja
Oct 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·Sérgio Estelita BarrosMarcos Janson
Sep 23, 2014·Veterinary Surgery : VS·Karen L PerryGareth I Arthurs
Dec 31, 2014·European Journal of Orthodontics·Ahmet A CelebiEnes Tan
Jan 27, 2015·Biomechanics and Modeling in Mechanobiology·Romain VayronGuillaume Haïat
Aug 4, 2015·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Masako TabuchiTakahiro Ogawa
Jun 14, 2015·Journal of Biomechanics·Emma LaMalfa Ribolla, Piervincenzo Rizzo
Jan 25, 2011·Ultrasound in Medicine & Biology·Vincent MathieuGuillaume Haïat
Sep 3, 2016·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Mehdi AraghbidikashaniMajid Rezaei
Jun 21, 2011·The Journal of the Acoustical Society of America·Vincent MathieuGuillaume Haiat
Sep 12, 2018·The Angle Orthodontist·Yasuhiko OgaShouichi Miyawaki
Jul 24, 2015·Implant Dentistry·Jian-Hong YuChun-Li Lin
Jan 28, 2021·Dental press journal of orthodontics·Safiya SanaAsma Fatima