Direct tooth-colored restorative materials: a comparative analysis of the fluorescence properties among different shades.

Objective: The fluorescence properties of tooth-colored restorative materials can vary according to the shade of the material. The objective of this study was to investigate the fluorescence behavior of different shades of selected contemporary tooth-colored restorative materials when illuminated with violet light (405 nm wavelength).

Methods: Fifteen different tooth-colored restorative materials, in total 111 shades, were analyzed.

Effect of Heat on the Fluorescence Properties of Tooth-Colored Restorative Materials and Their Forensic Implications.

During antemortem and postmortem comparison of dental records of carbonized victims, restorations may be part of such records. The objective of this study was to evaluate the effect of heat on the fluorescence behavior of contemporary tooth-colored restorative materials and natural tooth structure when subjected to range of temperatures, using illumination with 405 nm wavelength light. A total of 132 human extracted teeth restored with tooth-colored restorative materials were exposed to heat (200, 500, 900, 1200°C) in an oven for 30 min.

Fluorescence-aided selective removal of resin-based composite restorative materials: An in vitro comparative study.

Aim: During removal of resin-based composite (RBC) restorations, removal of adjacent sound tooth structure can easily occur. The aim of the study was to compare the fluorescence-aided identification of restorations (FAIR) method with the conventional method (CM) using white light illumination for the selective removal of tooth-colored RBC restorations.

Materials And Methods: Sixty extracted teeth were used to prepare 15 sets of models, each with four teeth.

Detection of Tooth-Colored Restorative Materials for Forensic Purposes Based on Their Optical Properties: An In Vitro Comparative Study.

Victim identification using dental records involves antemortem and postmortem comparison of dental charts. Since dental restorations may be part of such records, identifying them accurately is critical. The objective of this study was to compare the diagnostic reliability and validity of two optical methods for identifying tooth-colored restorations (digital imaging fiber optic transillumination (DiFOTI) using near infrared light, and fluorescence-aided identification of restorations (FAIR)) with conventional diagnostic methods.

Forensic applications: Fluorescence properties of tooth-coloured restorative materials using a fluorescence DSLR camera.

The objective of this study was to compare the fluorescence properties of dry and wet samples of contemporary tooth-coloured restorative materials using a fluorescence based DSLR camera and a variety of LEDs emitting different wavelengths of visible light as excitation sources. The materials examined included resin composites; ceramics and hybrid restorative materials such as ormocers, Vita Enamic™ and resin reinforced glass-ionomer cements. The levels of fluorescence for each sample under different combinations of incident light wavelengths and filters was analysed by using histogram data for colour channels from Adobe Photoshop software.