Pre-drilling force and insertion torques during orthodontic mini-implant insertion in relation to root contact

Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie
Benedict WilmesDieter Drescher

Abstract

The use of mini-implants for skeletal anchorage has greatly broadened the therapeutic spectrum in orthodontics over the last few years. The alveolar ridge is the most frequent insertion site, which however is associated with tooth injury, a risk not to be underestimated. The objective of this study was to examine the quantitative parameters of pre-drilling and implant insertion in association with the degree of a root contact. Eleven lower jaw bones of adult pigs were prepared and embedded in resin. At 320 sites in the toothbearing alveolar ridge a 1.3 mm pre-drilling was carried out up to the complete implant length. The vertical force exerted against the pre-drilling upon penetration of the different bone layers and at a root contact was measured at a drift-speed of 0.5 mm/s. Dual Top screws (1.6 x 8 mm) were then inserted into the prepared implant sites, the insertion torques were measured, and recorded as a function of the rotation angle. After explantation, we prepared histological slides from the level of the implant's maximum diameter. The implant's contact with cortical and cancellous bone and to the roots was measured and correlated to vertical pre-drilling forces and insertion torques. Vertical pre-drilling forces and...Continue Reading

Citations

Feb 6, 2010·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Britta FlorvaagRobert A Mischkowski
Apr 20, 2011·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Sandra LehnenMartin Baxmann
May 12, 2012·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Ruth BennemannChristoph Bourauel
Aug 12, 2010·Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz·H Dickhaus, R Metzner
Jun 23, 2009·The Angle Orthodontist·Benedict Wilmes, Dieter Drescher
Oct 25, 2008·The Angle Orthodontist·Benedict WilmesDieter Drescher
Sep 28, 2014·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Chung-Chen Jane YaoYi-Jane Chen
Sep 4, 2012·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Sérgio Estelita BarrosMarcos Janson
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
Dec 28, 2012·Journal of Orthodontics·Sérgio EstelitaMarcos Janson
Dec 10, 2014·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Ricardo da Costa SabecMarcelo Lupion Poleti
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
Aug 7, 2013·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Reint Meursinge ReyndersShandra Bipat
Apr 11, 2018·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Eman Saad RadwanAhmed Maher
Dec 5, 2020·Orthodontics & Craniofacial Research·Marco MiglioratiArmando Silvestrini-Biavati

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