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  • 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.
51

Vascular morphology of the mouse molar periodontium

Wong, Ronnie Sait Tat. January 1983 (has links) (PDF)
Ill. mounted. Bibliography: 9.1-9.20.
52

A morphometric examination of the periodontal ligament vasculature of the marmoset molar

Douvartzidis, Isaia. January 1984 (has links) (PDF)
Some mounted ill. Bibliography: leaves 191-226.
53

Effect of bisphosphonate on osteogenic differentiation of pulp and PDL cells

Saoji, Nachiket A. January 2008 (has links) (PDF)
Thesis (M.S.)--University of Alabama at Birmingham, 2008. / Title from PDF title page (viewed on Feb. 3, 2010). Includes bibliographical references (p. 38-42).
54

The molecular basis of orthodontic tooth movement : cytokine signaling by PDL cells in tension an in vitro study

Pinkerton, Mark Neil, n/a January 2007 (has links)
The pressure-tension hypothesis is the governing dogma of orthodontic tooth movement. This theory proposes that the application of loads to the crown of a tooth during orthodontic mechano-therapy results in differential site-specific reactionary strains in the para-dental tissues. Briefly, following the application of orthodontic load the bone and periodontal ligament (PDL) on one side of the tooth is placed in compression favoring bone resorption, while on the other side of the tooth they are placed in tension favoring osteogenesis The present in vitro model provides a surrogate for the PDL on the tension side of the tooth during orthodontic tooth movement and aims to identify mechanically induced changes in the expression of osteo-regulatory cytokines in human PDL cell cultures in response to tensile mechanical strain. Materials and Methods: PDL explants were obtained from pathology free bicuspids of two human subjects following extraction of the teeth for orthodontic purposes. Following serial passage, cells were plated on Uniflex� plates and consigned to either the experimental or control groups. Experimental cells were exposed to a cyclic uniaxial tensile mechanical strain for 6,12 or 24 hours using the Flexercell FX 4000 strain unit. Total RNA was extracted using a two-step procedure and samples were analysed using real-time RT-PCR assays for a range of osteo-regulatory cytokines. Results: Human PDL cells expressed mRNA for a range of cytokines of known significance to osteogenesis and osteoclastogenesis in response to mechanical stimulation. Conclusions: The production of osteo-regulatory cytokines by PDL cells in response to mechanical strain suggests that these cells have the potential to contribute to the osseous modeling of orthodontic tooth movement. The presence of osteogenic signalling drive in response to tensile strain tends to support the basic assertions of the pressure-tension hypothesis.
55

Clast cell activity in a model of aseptic root resorption /

Dreyer, Craig William. January 2002 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, Dental School, 2002. / Includes bibliographical references (leaves 355-403).
56

A study of the pressoreceptive thresholds of human teeth thesis submitted in partial fulfillment ... orthodontics ... /

Lee, James F. January 1965 (has links)
Thesis (M.S.)--University of Michigan, 1965.
57

The vascularity of the rat periodontal ligament and its relation to bone remodelling

Visser, Jacob, January 1967 (has links)
Proefschrift--Utrecht. / "Stellingen": [2] p. inserted. Summary in Dutch. Bibliography: p. 42.
58

A study of the pressoreceptive thresholds of human teeth thesis submitted in partial fulfillment ... orthodontics ... /

Lee, James F. January 1965 (has links)
Thesis (M.S.)--University of Michigan, 1965.
59

The vascularity of the rat periodontal ligament and its relation to bone remodelling

Visser, Jacob, January 1967 (has links)
Proefschrift--Utrecht. / "Stellingen": [2] p. inserted. Summary in Dutch. Bibliography: p. 42.
60

Isolation and characterization of human periodontal ligament stem cells

Gay, Isabel C. January 2007 (has links) (PDF)
Thesis (M.S.)--University of Alabama at Birmingham, 2007. / Title from first page of PDF file (viewed Oct. 30, 2007). Includes bibliographical references (p. 61-66).

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