DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS
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| Language: | English |
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The Ohio State University / OhioLINK
2011
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=osu1302639437 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-osu13026394372021-08-03T06:02:13Z DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS Sadek, Hani Dentistry Orthodontic elastomeric chains are commercially available from many manufacturers. Objective: This study investigated effects of manufacturing factors on dynamic force delivery and viscoelastic properties of elastomeric chains from three manufacturers using dynamic mechanical analysis (DMA). Methods: Three popular colors (clear, silver/gray, black) of elastomeric chains were obtained from three manufacturers (GAC, RMO, 3M Unitek). The dimensions for nine specimens of each colored brand (N=81) were measured, and DMA was performed at eight frequencies (0.125, 0.25, 0.5, 1.0, 2.0, 4.0, 8.0, and 16.0Hz). Five DMA variables [storage stiffness (K'), loss stiffness (K''), Tan δ, and damping (C)] were analyzed using repeated-measures ANOVA and pairwise t-tests, comparing all frequencies for each colored brand (Bonferroni correction) and all colored brands for each frequency (step-wise Bonferroni correction). Significance was set at α=0.05. Results: Significant differences were found among means of all four measured specimen dimensions. Comparing the five mean DMA variables for each colored brand, values for nearly all frequencies differed from one another. Comparing the mean DMA variables for each frequency, significant differences were also found for all variables and frequencies. Conclusions: Multiple manufacturing factors likely combine to affect dynamic force delivery and viscoelastic properties of elastomeric chains. Further research investigating clinical performance is recommended. 2011-07-20 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1302639437 http://rave.ohiolink.edu/etdc/view?acc_num=osu1302639437 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Dentistry |
| spellingShingle |
Dentistry Sadek, Hani DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS |
| author |
Sadek, Hani |
| author_facet |
Sadek, Hani |
| author_sort |
Sadek, Hani |
| title |
DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS |
| title_short |
DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS |
| title_full |
DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS |
| title_fullStr |
DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS |
| title_full_unstemmed |
DYNAMIC MECHANICAL ANALYSIS OF DIFFERENT BRANDS OF ORTHODONTIC ELASTOMERIC CHAINS |
| title_sort |
dynamic mechanical analysis of different brands of orthodontic elastomeric chains |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2011 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1302639437 |
| work_keys_str_mv |
AT sadekhani dynamicmechanicalanalysisofdifferentbrandsoforthodonticelastomericchains |
| _version_ |
1719429839041069056 |