Computing the Surface Area of Three-Dimensional Scanned Human Data

Fine Wrinkle Treatment and Hydration on the Facial Dermis Using HydroToxin Mixture of MicroBotox and MicroHyaluronic Acid

BACKGROUND

Hyaluronic acid (HA) is a key contributor to skin moisture (hydration), and MicroBotox demonstrates improvements for fine wrinkles of the face.

OBJECTIVES

The author sought to evaluate the safety and efficacy of intradermal injection of hydrotoxin (combined mixture of MicroHA and MicroBotox) for the treatment of skin roughness and dryness on facial dermis.

METHODS

Fifty women who had thin, dry skin with fine wrinkles throughout the whole face, especially in the crow's feet and forehead areas, were enrolled in the study. Two cc stabilized-HA filler and 1 cc (40 U) of botulinumtoxinA were mixed in the novel combined hydrotoxin mixture. Intended to hydrate the dermis and treat fine wrinkles of the face, the mixture was injected into the real dermal layer of the face. The volume of HA per site was 0.002 cc and toxin was 0.04 U. Skin roughness and stratum corneum hydration were measured at 1, 2, 3, and 6 months.

RESULTS

One month post-treatment, skin roughness was reduced to 50.19% in topographic computer analysis utilizing 10× dermascope photos. Stratum corneum hydration on crow's feet improved to 81.34% at 1 month and 56.12% at 2 months from pre-treatment baseline (P < 0.0001). Global Aesthetic improvement scale of Skin hydration and fine wrinkle improved.

CONCLUSIONS

The combination injection method of MicroHA and MicroBotox is not associated with side effects and showed significant synergic effect in improvement of skin roughness and moisturizing. Neuramix-hydrotoxin injection method is an easy and reproducible procedure to make constant injection depth and amount.

LEVEL OF EVIDENCE: 4

The correction of clothing insulation and ergonomic design through 3D CAD reverse engineering

Three-dimensional (3D) scanning and computer-aided design (CAD) technology has been used in engineering and ergonomics practice for several years, due to their admissibility in producing accurate 3D object representation, scan data restoration and modification. Lately, application was extended for reconstructing and modelling 3D scan data of the human body, since this enables tracing the geometry information and precise measurement analysis. In this study, this technology was applied to analyse scanned models of a dressed human body. The changes in microclimatic air distribution and clothing area due to changing upper limb positions, simulating functional reaching movements for aircrew personnel, were calculated using 3D scanning and CAD technology. The results prove the posture representing the overall lateral limit of reach to be the best for the volume and area identification by means of 3D scanning. The study will further serve as a basis to modify clothing prototypes for improved thermal protection.