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Detection of white restorative dental materials using an alternative light source
D O Carson1, Y Orihara, J L Sorbie
1Department of Forensic Medicine, Royal Infirmary, Dundee, UK.
Forensic Science International
|August 4, 1997
Summary
This study shows an alternative light source effectively detects white composite dental materials in teeth, even after burning. Specific wavelengths enhance visibility, aiding forensic odontology identification.
Area of Science:
- Forensic Odontology
- Dental Materials Science
- Optical Imaging
Background:
- Accurate identification of dental restorative materials is crucial in forensic odontology.
- Traditional methods may face challenges in detecting specific materials, particularly in post-mortem or burned contexts.
Purpose of the Study:
- To evaluate the efficacy of an alternative light source (Polilight) for detecting white composite dental materials.
- To determine optimal wavelengths for enhanced visibility of various restorative materials in unburned and simulated burned teeth.
Main Methods:
- Examined 18 different restorative materials (composites, glass ionomers, hybrid composites) in teeth using a Polilight.
- Assessed material visibility across a range of wavelengths (415 nm to 590 nm and under 350 nm) before and after simulated burning.
Main Results:
- Glass ionomers exhibited unique optical properties (fluorescence or darkness) between 415-555 nm.
- Wavelengths of 415-530 nm improved detection of 17 of 18 composite materials.
- Post-burning, wavelengths under 350 nm enhanced visibility of 8 materials, though glass ionomer distinctiveness was lost.
Conclusions:
- The Polilight, using specific wavelengths, significantly aids in identifying white composite dental materials.
- This alternative light source demonstrates potential for routine application in forensic odontology practices.