Menu
×
Wando Mount Pleasant Library
9 a.m. - 5 p.m.
Phone: (843) 805-6888
Main Library
9 a.m. - 5 p.m.
Phone: (843) 805-6930
McClellanville Library
9 a.m. – 1 p.m.
Phone: (843) 887-3699
Folly Beach Library
9 a.m. - 2 p.m.
Phone: (843) 588-2001
Miss Jane's Building (Edisto Library Temporary Location)
9 a.m. – 1 p.m.
Phone: (843) 869-2355
West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 766-6635
John L. Dart Library
9 a.m. - 5 p.m.
Phone: (843) 722-7550
St. Paul's/Hollywood Library
9 a.m. - 5 p.m.
Phone: (843) 889-3300
Mt. Pleasant Library
9 a.m. – 5 p.m.
Phone: (843) 849-6161
Dorchester Road Library
9 a.m. - 5 p.m.
Phone: (843) 552-6466
Edgar Allan Poe/Sullivan's Island Library
9 a.m. - 1 p.m.
Phone: (843) 883-3914
John's Island Library
9 a.m. - 5 p.m.
Phone: (843) 559-1945
Otranto Road Library
9 a.m. - 5 p.m.
Phone: (843) 572-4094
Hurd/St. Andrews Library
9 a.m. - 5 p.m.
Phone: (843) 766-2546
Baxter-Patrick James Island
9 a.m. - 5 p.m.
Phone: (843) 795-6679
Bees Ferry West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 805-6892
Village Library
9 a.m. - 1 p.m.
Phone: (843) 884-9741
Keith Summey North Charleston Library
9 a.m. – 5 p.m.
Phone: (843) 744-2489
Mobile Library
Closed
Phone: (843) 805-6909
Today's Hours
Wando Mount Pleasant Library
9 a.m. - 5 p.m.
Phone: (843) 805-6888
Main Library
9 a.m. - 5 p.m.
Phone: (843) 805-6930
McClellanville Library
9 a.m. – 1 p.m.
Phone: (843) 887-3699
Folly Beach Library
9 a.m. - 2 p.m.
Phone: (843) 588-2001
Miss Jane's Building (Edisto Library Temporary Location)
9 a.m. – 1 p.m.
Phone: (843) 869-2355
West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 766-6635
John L. Dart Library
9 a.m. - 5 p.m.
Phone: (843) 722-7550
St. Paul's/Hollywood Library
9 a.m. - 5 p.m.
Phone: (843) 889-3300
Mt. Pleasant Library
9 a.m. – 5 p.m.
Phone: (843) 849-6161
Dorchester Road Library
9 a.m. - 5 p.m.
Phone: (843) 552-6466
Edgar Allan Poe/Sullivan's Island Library
9 a.m. - 1 p.m.
Phone: (843) 883-3914
John's Island Library
9 a.m. - 5 p.m.
Phone: (843) 559-1945
Otranto Road Library
9 a.m. - 5 p.m.
Phone: (843) 572-4094
Hurd/St. Andrews Library
9 a.m. - 5 p.m.
Phone: (843) 766-2546
Baxter-Patrick James Island
9 a.m. - 5 p.m.
Phone: (843) 795-6679
Bees Ferry West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 805-6892
Village Library
9 a.m. - 1 p.m.
Phone: (843) 884-9741
Keith Summey North Charleston Library
9 a.m. – 5 p.m.
Phone: (843) 744-2489
Mobile Library
Closed
Phone: (843) 805-6909
Patron Login
menu
Item request has been placed!
×
Item request cannot be made.
×
![loading](/sites/all/modules/hf_eds/images/loading.gif)
Surface Characteristics and Color Stability of Dental PEEK Related to Water Saturation and Thermal Cycling.
Item request has been placed!
×
Item request cannot be made.
×
![loading](/sites/all/modules/hf_eds/images/loading.gif)
- Author(s): Porojan, Liliana; Toma, Flavia Roxana; Bîrdeanu, Mihaela Ionela; Vasiliu, Roxana Diana; Uțu, Ion-Dragoș; Matichescu, Anamaria
- Source:
Polymers (20734360); Jun2022, Vol. 14 Issue 11, p2144-2144, 13p- Subject Terms:
- Source:
- Additional Information
- Abstract: (1) Background: The study was undertaken to evaluate the surface characteristics, microhardness, and color stability of PEEK materials related to water saturation and in vitro aging. (2) Methods: Custom specimens of unmodified and modified PEEK CAD/CAM materials were investigated: BioHPP, a ceramic reinforced PEEK, and Finoframe PEEK and Juvora medical PEEK, 100% PEEK materials. Forty-eight plates were sectioned in rectangular slices. The specimens were immersed in distilled water at 37 °C for a period of 28 days, and then subjected to aging by thermal cycling (10,000 cycles). Surface roughness was measured with a contact profilometer; nanosurface topographic characterization was made by Atomic Force Microscopy; Vickers hardness measurements were performed with a micro-hardness tester; color changes were calculated. All registrations were made before immersion in water and then subsequently once a week for 4 weeks, and after thermocycling. (3) Results: The studied reinforced and unfilled PEEK materials reached water saturation after the first week of immersion, without significant differences between them. The most affected from this point of view was the reinforced PEEK material. Thermocycling induces a significant increase inmicroroughness, without significant differences between the studied materials. In relation to the nanosurface topography and roughness, the reinforced PEEK material was the least modified by aging. The color changes after 4 weeks of water immersion and one year of simulated in vitro aging ranged from extremely slight to slight, for all materials. (4) Conclusions: Water absorption was associated with a decrease in microhardness. Surface characteristics are affected by water immersion and thermocycling. Perceivable or marked color changes of the materials were not detected during the study. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
Contact CCPL
Copyright 2022 Charleston County Public Library Powered By EBSCO Stacks 3.3.0 [350.3] | Staff Login
No Comments.