• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 27
  • 24
  • 3
  • Tagged with
  • 54
  • 54
  • 25
  • 24
  • 20
  • 14
  • 13
  • 10
  • 8
  • 8
  • 8
  • 8
  • 8
  • 7
  • 7
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Alteration in mechanical properties of 18-8 stainless steel wire by heating a thesis submitted in partial fulfillment ... orthodontics /

Loutfy, M. Samir. January 1963 (has links)
Thesis (M.S.)--University of Michigan, 1963.
12

Alteration in mechanical properties of 18-8 stainless steel wire by heating a thesis submitted in partial fulfillment ... orthodontics /

Loutfy, M. Samir. January 1963 (has links)
Thesis (M.S.)--University of Michigan, 1963.
13

Change in stiffness properties of some orthodontic wires under varying conditions of heat treatment a thesis submitted in partial fulfillment ... orthodontics /

Mathe, Juan Gustavo. January 1944 (has links)
Thesis (M.S.)--University of Michigan, 1944.
14

The Effect of Wire Fixation Methods on the Measured Force Systems of a T-Loop Orthodontic Spring

Gregg, Joseph R. January 1997 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Ideal orthodontic springs are able to provide a controlled moment-to-force (M/F) ratio and a low load deflection rate. A great deal of research has gone into describing force systems generated by orthodontic springs. Most studies investigating the force system generated by T-loops have used rigid fixation for the spring ends. This is practical for laboratory studies, but it does not truly represent clinical situations in which orthodontic brackets are used to anchor spring ends. Results from laboratory studies have been applied to clinical situations without regard to what effect, if any, the method of end fixation may have. It is the goal of this study to determine the effects of spring fixation on generated force systems. The springs were held by rigid fixation and bracket ligation with either elastomeric or steel ligature ties. Comparison of these fixation methods was made by testing T-loops of different dimensions, with and without heat treatment at various activation distances. In theory, the wire is ligated rigidly against the bracket, so that the combination acts as a single unit by rigid fixation. Thus, there should be no difference between the generated force systems when spring ends are held by rigid fixation, or when they are held in place with orthodontic brackets and ligated by either elastomeric or steel ligature ties. However, the results indicate that are significant differences among the methods of fixation for each spring variation and heat treatment. The rigid fixation method consistently produced smaller moments and M/F ratios for all springs with every activation and heat treatment combination.
15

Investigation of frictional resistance on orthodontic brackets when subjected to variable moments

Mah, Edward. January 2002 (has links)
Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains x, 101 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 90-100).
16

A comparative study of nonextraction treatment efficiency using conventional edgewise brackets and self-ligating brackets

Reddick, Chad R. January 2007 (has links) (PDF)
Thesis (M.S.)--University of Alabama at Birmingham, 2007. / Title from first page of PDF file (viewed on June 26, 2009). Includes bibliographical references.
17

Tooth movement caused by a loop lingual arch wire as measured on two test models of the mandibular dental arch a thesis submitted in partial fulfillment ... in pedodontics ... /

Carlson, George Thomas. January 1973 (has links)
Thesis (M.S.)--University of Michigan, 1973.
18

Evaluation of stainless steel, TMA, and Nitinol orthodontic wires a thesis submitted in partial fulfillment ... in orthodontics ... /

Drake, Scott R. Wayne, Donald M. January 1981 (has links)
Thesis (M.S.)--University of Michigan, 1981.
19

An evaluation of a potentially superior type of stainless steel for orthodontic wires a dissertation [sic] submitted in partial fulfillment ... orthodontics /

Slesnick, Harry J. January 1963 (has links)
Thesis (M.S.)--University of Michigan, 1963.
20

Evaluation of stainless steel, TMA, and Nitinol orthodontic wires a thesis submitted in partial fulfillment ... in orthodontics ... /

Drake, Scott R. Wayne, Donald M. January 1981 (has links)
Thesis (M.S.)--University of Michigan, 1981.

Page generated in 0.0692 seconds