Visor flap: A solution for the reconstruction of large skin defects on the frontal and parietal parts of the skull.

Background: Reconstruction of skin defects after oncological surgery for a cutaneous squamous cell carcinoma is often mandatory to facilitate adjuvant treatment and/or to prevent chronic wound problems. Some of the most challenging regions to reconstruct after resection of a skin tumor are the frontal and parietal parts of the skull.

Methods: This article describes three patients with large skin defects after oncological surgery that were reconstructed with the use of a (hemi) visor flap.

Advancements in diagnosing oral potentially malignant disorders: leveraging Vision transformers for multi-class detection.

Objectives: Diagnosing oral potentially malignant disorders (OPMD) is critical to prevent oral cancer. This study aims to automatically detect and classify the most common pre-malignant oral lesions, such as leukoplakia and oral lichen planus (OLP), and distinguish them from oral squamous cell carcinomas (OSCC) and healthy oral mucosa on clinical photographs using vision transformers.

Methods: 4,161 photographs of healthy mucosa, leukoplakia, OLP, and OSCC were included.

Does facial asymmetry vary between subjects of different age groups? A 3D stereophotogrammetry analysis.

This study was aimed to assess whether facial asymmetry increases with age and to examine potential gender differences using 3D stereophotogrammetry. A prospective cross-sectional study was performed. 3D photographs were acquired from 600 control subjects, 300 male, 300 female, and were stratified into 15 different age groups ranging from 0 to 70+.

V and Cr substitution in dicalcium silicate under oxidizing and reducing conditions - Synthesis, reactivity, and leaching behavior studies.

Dicalcium silicate (CS) is known to incorporate potentially hazardous metals (Cr and V) in a belite-rich cementitious system. The effect of the electrovalence nature of V and Cr on CS polymorphs' (α´, β, γ) stability under oxidizing and reducing conditions as well as their reactivity are systematically investigated via analyzing oxidation states, phase composition, bonding system, and microstructure as well as oxide composition quantitively. It is shown that CS can incorporate Cr (VI) and V(V) consequently leading to stabilization of α´, β-CS.