Thesis (M.S.)--Ohio State University, 2009. / Title from first page of PDF file. Includes vita. Includes bibliographical references (p. 68-76).

No description available.

No description available.

AIM: To analyze staining properties of aesthetic brackets. MATERIAL & METHODS: A total of 400 tooth-coloured brackets from 10 brands 5 ceramic and 5 plastic) were investigated. Cumulative effects of staining agents were analyzed at simulated light and heavy consumption levels. Study groups were immersed in the staining agents consecutively at 37°C. The control group was exposed to artificial saliva. Samples were analyzed digitally to obtain the L*, a*, and b* (lightness, red-green, and yellow-blue) colour readings. Using these values total colour change (ΔE*) was also calculated. A general linear model (ANOVA) test was used for statistical comparisons. RESULTS: Significant differences were observed in L*, and b* values of ceramic brackets at all consumption levels (p≤.0001). All values had significant differences amongst the plastic brackets (p≤.0001), except for L* with heavy exposure. Total ΔE* values for ceramic and plastic brackets were 11 and 26, respectively. CONCLUSIONS: Both plastic and ceramic brackets showed changes in colour when exposed to staining agents, with plastic brackets being the most affected.

AIM: To analyze staining properties of aesthetic brackets. MATERIAL & METHODS: A total of 400 tooth-coloured brackets from 10 brands 5 ceramic and 5 plastic) were investigated. Cumulative effects of staining agents were analyzed at simulated light and heavy consumption levels. Study groups were immersed in the staining agents consecutively at 37°C. The control group was exposed to artificial saliva. Samples were analyzed digitally to obtain the L*, a*, and b* (lightness, red-green, and yellow-blue) colour readings. Using these values total colour change (ΔE*) was also calculated. A general linear model (ANOVA) test was used for statistical comparisons. RESULTS: Significant differences were observed in L*, and b* values of ceramic brackets at all consumption levels (p≤.0001). All values had significant differences amongst the plastic brackets (p≤.0001), except for L* with heavy exposure. Total ΔE* values for ceramic and plastic brackets were 11 and 26, respectively. CONCLUSIONS: Both plastic and ceramic brackets showed changes in colour when exposed to staining agents, with plastic brackets being the most affected.

There has been a dramatic increase in the number of females entering the orthodontic profession over the past few decades, however, there is very little published literature on female orthodontists and work-family balance. A qualitative study, using the framework of phenomenology, was used to analyze data obtained from semi-structured telephone interviews of a purposive sample of Canadian female orthodontists. Results conveyed that the issue of work-family balance is of paramount importance to the women interviewed. They defined balance in terms of having success, and satisfaction, in both their family life and professional life. However, they recognized the requirement of compromising and prioritizing. The participants discussed the specific challenges of work-family balance in orthodontic practice, and outlined adaptations to the maternal role and the professional role, to help achieve balance. Finally, they identified areas where they experienced the most role conflict. / Medical Sciences - Orthodontics

Master of Dental Surgery / This work was digitised and made available on open access by the University of Sydney, Faculty of Dentistry and Sydney eScholarship . It may only be used for the purposes of research and study. Where possible, the Faculty will try to notify the author of this work. If you have any inquiries or issues regarding this work being made available please contact the Sydney eScholarship Repository Coordinator - ses@library.usyd.edu.au

Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 129-148) Also available in print.

Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.

Thesis (M.S. )--University of Tennessee Health Science Center, 2008. / Title from title page screen (viewed on July 25, 2008). Research advisor: Edward Harris, Ph.D. Document formatted into pages (xvi, 294 p. : ill.). Vita. Abstract. Includes bibliographical references (p. 169.182).