Digital analysis of staining properties of clear aesthetic brackets
| dc.contributor.author | Rykiss, Jared | |
| dc.contributor.examiningcommittee | Wiltshire, William (Preventive Dental Science) Rody, Wellington (Preventive Dental Science) Asadoorian, Joanna (School of Dental Hygiene) | en_US |
| dc.contributor.supervisor | Akyalcin, Sercan (Preventive Dental Science) | en_US |
| dc.date.accessioned | 2011-09-14T18:13:16Z | |
| dc.date.available | 2011-09-14T18:13:16Z | |
| dc.date.issued | 2011-09-14 | |
| dc.degree.discipline | Preventive Dental Science | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| 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.description.note | October 2011 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1993/4922 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| 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 | master thesis | en_US |