Please use this identifier to cite or link to this item:
https://doi.org/10.3390/coatings7110201
DC Field | Value | |
---|---|---|
dc.title | Mechanical and spectroscopic analysis of retrieved/failed dental implants | |
dc.contributor.author | Daood, U | |
dc.contributor.author | Banday, N | |
dc.contributor.author | Akram, Z | |
dc.contributor.author | Tsoi, J.K | |
dc.contributor.author | Neelakantan, P | |
dc.contributor.author | Omar, H | |
dc.contributor.author | Abduljabbar, T | |
dc.contributor.author | Vohra, F | |
dc.contributor.author | Al-Hamoudi, N | |
dc.contributor.author | Fawzy, A.S | |
dc.date.accessioned | 2020-10-20T09:15:11Z | |
dc.date.available | 2020-10-20T09:15:11Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Daood, U, Banday, N, Akram, Z, Tsoi, J.K, Neelakantan, P, Omar, H, Abduljabbar, T, Vohra, F, Al-Hamoudi, N, Fawzy, A.S (2017). Mechanical and spectroscopic analysis of retrieved/failed dental implants. Coatings 7 (11) : 201. ScholarBank@NUS Repository. https://doi.org/10.3390/coatings7110201 | |
dc.identifier.issn | 20796412 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/178330 | |
dc.description.abstract | The purpose of this study was to examine surface alterations and bone formation on the surface of failed dental implants (Straumann [ST] and TiUnite [TiUn]) removed due to any biological reason. In addition, failure analysis was performed to test mechanical properties. Dental implants (n = 38) from two manufacturers were collected and subjected to chemical cleaning. The presence of newly formed hydroxyapatite bone around failed implants was evaluated using micro-Raman spectroscopy. Scanning electron microscopy was used to identify surface defects. Mechanical testing was performed using a Minneapolis servo-hydraulic system (MTS) along with indentation using a universal testing machine and average values were recorded. A statistical analysis of mechanical properties was done using an unpaired t test, and correlation between observed defects was evaluated using Chi-square (p = 0.05). Apatite-formation was evident in both implants, but was found qualitatively more in the ST group. No significant difference was found in indentation between the two groups (p > 0.05). The percentage of "no defects" was significantly lower in the ST group (71%). Crack-like and full-crack defects were observed in 49% and 39% of TiUn. The ST group showed 11,061 cycles to failure as compared with 10,021 cycles in the TiUnite group. Implant failure mechanisms are complex with a combination of mechanical and biological reasons and these factors are variable with different implant systems. © 2017 by the authors. | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.source | Unpaywall 20201031 | |
dc.type | Article | |
dc.contributor.department | DENTISTRY | |
dc.description.doi | 10.3390/coatings7110201 | |
dc.description.sourcetitle | Coatings | |
dc.description.volume | 7 | |
dc.description.issue | 11 | |
dc.description.page | 201 | |
Appears in Collections: | Elements Staff Publications |
Show simple item record
Files in This Item:
File | Description | Size | Format | Access Settings | Version | |
---|---|---|---|---|---|---|
10_3390_coatings7110201.pdf | 24.23 MB | Adobe PDF | OPEN | None | View/Download |
This item is licensed under a Creative Commons License