Background: Periorbital rejuvenation is a common cosmetic concern. A fractional thermomechanical skin rejuvenation system was developed to offer clinical improvements from direct heat transfer.
Objective: A prospective study evaluated the efficacy and safety of the device for periorbital fine lines and wrinkles.
Materials And Methods: Subjects with moderate-to-severe periorbital rhytides were enrolled and underwent 4 monthly treatments with a novel device using thermomechanical fractional injury (Tixel 2; Novoxel, Netanya, Israel).
Results: Fifty-one subjects were enrolled. Mean age was 56.8 years, and 88.2% were women. Fitzpatrick skin Types I to IV were included. For Fitzpatrick Wrinkle Classification System (FWCS), mean baseline score was 5.7. Per investigator, there was a mean 2.0-grade improvement in FWCS at 3-month follow-up ( p < .0001). Per 3 blinded physician raters, there was a mean improvement of 2.2 ( p < .0001), 2.0 ( p < .0001), and 1.2 ( p < .0001) in FWCS at 3-month follow-up. Each of the raters correctly identified posttreatment images for 87.5%, 77.1%, and 75.0% of subjects. At least 2 raters agreed on grading 83.3% of subjects as responders. There were no severe adverse events. Subjects experienced minimal pain and downtime.
Conclusion: A novel device using thermomechanical fractional injury was demonstrated to be safe and effective in the treatment of periorbital rhytides.
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http://dx.doi.org/10.1097/DSS.0000000000003728 | DOI Listing |
Lasers Surg Med
November 2024
Maryland Laser, Skin, and Vein Institute, Hunt Valley, Maryland, USA.
Background: Prior studies have shown that energy-based devices (EBDs) over pre-injected hyaluronic acid (HA) fillers do not significantly affect clinical outcomes. However, the impact of EBDs over newly FDA-approved HA filler for improving skin smoothness is still undetermined.
Objective: To evaluate the immediate histologic changes after various popular EBDs are performed over pre-injected, newly FDA-approved intradermal HA filler.
Rev Sci Instrum
October 2024
National Institute of Standards and Technology, Boulder, Colorado 80302, USA.
The frequency stability of a laser locked to an optical reference cavity is fundamentally limited by thermal noise in the cavity length. These fluctuations are linked to material dissipation, which depends on both the temperature of the optical components and the material properties. Here, the design and experimental characterization of a sapphire optical cavity operated at 10 K with crystalline coatings at 1069 nm is presented.
View Article and Find Full Text PDFSci Rep
September 2024
Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou, 412007, China.
Polyamide 6 (PA6) films with significant α relaxation process was selected as the model system. The creep behavior and rheological mechanism during deformation in the amorphous regions of semi-crystalline polymers are systematically investigated by carrying out creep experiments. Based on the quasi point defect (QPD) theory, the complete physical process of PA6 film creep behavior from elasticity to viscoelasticity and viscoplasticity was analyzed and modeled from the perspective of structural heterogeneity.
View Article and Find Full Text PDFHeliyon
September 2024
School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
The present work deals with characterizing the recrystallization accompanied flow and high temperature softening behavior of an extruded AZ61 magnesium alloy. This was supported by conducting a set of hot compression tests at temperatures in the range of 250-450 °C under the strain rate ranging from 0.001 to 0.
View Article and Find Full Text PDFPolymers (Basel)
August 2024
Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China.
Polyamide 6 (PA6) film as a typical viscoelastic material, satisfies the time-temperature superposition (TTS), and demonstrates obvious dynamic strain amplitude and frequency correlation under dynamic load. The investigation of the dynamic mechanical behavior of PA6 film is essential to ensure the safety of these materials in practical applications. In addition, dynamic mechanical property testing under conventional experimental conditions generally focuses on the short-term mechanical performance of materials.
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