dc.contributor.supervisor |
Akyalcin, Sercan (Preventive Dental Science) |
en_US |
dc.contributor.author |
Rykiss, Jared
|
|
dc.date.accessioned |
2011-09-14T18:13:16Z |
|
dc.date.available |
2011-09-14T18:13:16Z |
|
dc.date.issued |
2011-09-14 |
|
dc.identifier.uri |
http://hdl.handle.net/1993/4922 |
|
dc.description.abstract |
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. |
en_US |
dc.rights |
info:eu-repo/semantics/openAccess |
|
dc.subject |
Orthodontics |
en_US |
dc.subject |
Brackets |
en_US |
dc.subject |
Colour |
en_US |
dc.subject |
Staining |
en_US |
dc.subject |
Aesthetic brackets |
en_US |
dc.title |
Digital analysis of staining properties of clear aesthetic brackets |
en_US |
dc.type |
info:eu-repo/semantics/masterThesis |
|
dc.degree.discipline |
Preventive Dental Science |
en_US |
dc.contributor.examiningcommittee |
Wiltshire, William (Preventive Dental Science) Rody, Wellington (Preventive Dental Science) Asadoorian, Joanna (School of Dental Hygiene) |
en_US |
dc.degree.level |
Master of Science (M.Sc.) |
en_US |
dc.description.note |
October 2011 |
en_US |