Fluorescence characterization of dental plaque by hyperspectral imaging   The buildup of dental plaque is the first step towards the oral diseases caries and periodontitis. Identification of pathogenic substances and matrix components is of importance when choosing an appropriate treatment plan. Hyperspectral imaging combines spectral and spatial information, providing new possibilities for precise optical characterization […]

Photoinactivation of bacteria by lumichrome: Influence of formulation and preparation method.   Introduction: Lumichrome, a photodegradation product of riboflavin, is an endogenous compound in humans. The compound is more photostable and a more efficient photogenerator of singlet oxygen than riboflavin. It absorbs radiation in the UVA and blue light region, which can be an advantage […]

Formulation and characterisation of lyophilised curcumin solid dispersions for antimicrobial photodynamic therapy (aPDT)   Introduction: Curcumin is currently under investigation as a potential photosensitiser in antimicrobial photodynamic therapy (aPDT). Previous studies have demonstrated high phototoxicity towards Gram-positive (G+) bacteria, but lower effect on Gram-negative (G-) bacteria. Aims and objectives: The purpose of this study was […]

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Materials(Dual-cured or chemical cured, polymer-based) Test methods Requirements Film thickness, ISO 4049 7.5 No more than 10 µm above the claimed value by the manufacturer, or in any event not greater than 50 µm (ISO 4049 5.2.2) Film thickness, ISO 4049 7.5 No more than 10 µm above the claimed value by the manufacturer, or […]