6 results match your criteria conditions self-drilling

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Self-Drilling Versus Self-Tapping Screws: A 3D Finite Element Analysis.

Craniomaxillofac Trauma Reconstr 2021 Mar 12;14(1):4-10. Epub 2020 Apr 12.

Faculty of Dental Sciences, Department of Oral and Maxillofacial Surgery, Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India.

Study Design: Self-tapping and self-drilling screws are two modalities available for plate fixation. When compared to self-drilling, self-tapping screws have a few drawbacks like screw loosening, thermal osteolysis, equipment dependent, and time-consuming.

Aim: The aim of this study was to compare the efficacy of self-tapping and self-drilling screws with relation to plate retention and stability in internal fixation of mandibular fractures using 3D finite element analysis (FEA). Read More

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Drilling Capability of Orthodontic Miniscrews: In Vitro Study.

Dent J (Basel) 2020 Dec 21;8(4). Epub 2020 Dec 21.

Department of Orthodontics, Fondazione IRCCS Cà Granda, University of Milan, 20122 Milan, Italy.

The aims of this study were to assess the values and mechanical properties of insertion torque (IT) of steel miniscrews inserted in artificial bone blocks (Sawbones, Pacific Research Laboratories, Vashon, WA, USA) with different bone densities and to detect any scratches on the surface of the miniscrews after insertion. Forty self-drilling miniscrews (Leone S.p. Read More

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December 2020

The Effect of Insertion Technique on Temperatures for Standard and Self-Drilling External Fixation Pins.

J Orthop Trauma 2017 Aug;31(8):e247-e251

*Mechanical Engineering, Bucknell University, Lewisburg, PA; and †Orthopaedics, Geisinger Health System, Danville, PA.

Objectives: No studies have assessed the effects of parameters associated with insertion temperature in modern self-drilling external fixation pins. The current study assessed how varying the presence of irrigation, insertion speed, and force impacted the insertion temperatures of 2 types of standard and self-drilling external fixation half pins.

Methods: Seventy tests were conducted with 10 trials for 4 conditions on self-drilling pins, and 3 conditions for standard pins. Read More

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Insertion Torques of Self-Drilling Mini-Implants in Simulated Mandibular Bone: Assessment of Potential for Implant Fracture.

Int J Oral Maxillofac Implants 2016 May-Jun;31(3):e57-64

Purpose: Fracture of orthodontic mini-implants during insertion is a limiting factor for their clinical success. The purpose of this study was to determine the fracture potential of commonly used self-drilling orthodontic mini-implants when placed into simulated thick, dense mandibular bone.

Materials And Methods: Six mini-implant systems were assessed for the potential for fracture (Aarhus, Medicon; Dual-Top, Jeil Medical; OrthoEasy, Forestadent; tomas-pin, Dentaurum; Unitek, 3M; and VectorTAS, Ormco). Read More

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Characterization of retrieved orthodontic miniscrew implants.

Am J Orthod Dentofacial Orthop 2009 Jan;135(1):10.e1-7; discussion 10-1

Department of Orthodontics, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.

Introduction: The purposes of this study were to characterize the morphologic, structural, and compositional alterations and to assess any hardness changes in used orthodontic miniscrew implants.

Methods: Eleven miniscrew implants (Aarhus Anchorage System, Medicon eG, Tuttlingen, Germany) placed in 5 patients were retrieved after successful service of 3.5 to 17. Read More

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January 2009

[Comparative in vitro studies of self-boring and self-tapping screws. Histomorphological and physical-technical studies of bone layers].

Mund Kiefer Gesichtschir 2000 May;4(3):159-63

AO-Forschungsinstitut, Davos.

Self-drilling screws are gaining increasing importance in maxillofacial surgery. This study assesses which screw design, self-drilling or self-tapping, is best suited to various locations of the human skull. With regard to different areas in the human midface, mandible, and cranium, the thickness of cortical bone varies as well as the relative proportion of cortical to cancellous bone. Read More

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