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Related Experiment Video

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Detection and Removal of Tooth-Colored Composite Resin Using the Fluorescence-Aided Identification Technique

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Detection of Caries Around Resin-Modified Glass Ionomer and Compomer Restorations Using Four Different Modalities In

Tamara Abrams¹, Stephen Abrams², Koneswaran Sivagurunathan³

¹Quantum Dental Technologies Inc., Toronto, ON M6B 1L3, Canada. tabrams@uoguelph.ca.

Dentistry Journal

|September 19, 2018

Summary

The Canary System (CS) shows potential for detecting secondary caries around dental restorations, outperforming visual inspection and other methods. This advanced technique offers improved accuracy in identifying decay beneath resin-modified glass ionomer and compomer fillings.

Keywords:

DIAGNODent ICDAS II PTR-LUM SPECTRA caries caries around restoration margins caries detection compomer resin-modified glass ionomer

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Area of Science:

Restorative Dentistry
Caries Detection Technologies
Dental Materials Science

Background:

Secondary caries beneath restorations is a significant clinical challenge.
Accurate detection of secondary caries is crucial for timely intervention and restoration longevity.
Existing diagnostic methods have limitations in evaluating carious lesions under restorative materials.

Purpose of the Study:

To compare the efficacy of visual examination (ICDAS II), LED fluorescence (SPECTRA), laser fluorescence (DIAGNODent), and photothermal radiometry/modulated luminescence (Canary System) in detecting secondary caries.
To evaluate these methods for detecting natural decay beneath resin-modified glass ionomer (RMGIC) and compomer restorations in vitro.

Main Methods:

Extracted human molars and premolars with natural or prepared cavities were restored with RMGIC or compomer.
Evaluated diagnostic modalities included visual inspection (ICDAS II), SPECTRA, DIAGNODent (DD), and Canary System (CS).
CS and DD measurements were taken at varying distances from the restoration margin (MOR).

Main Results:

SPECTRA data was inconclusive due to signal interference from restorations.
Visual examination (ICDAS II) identified only 5 out of 15 carious teeth, with limited ability to locate or assess lesion depth.
Canary System (CS) and DIAGNODent (DD) differentiated sound from carious tissue at the MOR, but CS demonstrated higher accuracy and less measurement variation compared to DD.

Conclusions:

The Canary System (CS) shows significant potential for accurately detecting secondary caries adjacent to RMGIC and compomer restorations.
CS appears more reliable than visual inspection, SPECTRA, and DIAGNODent for this specific diagnostic challenge.
Further clinical validation of CS for secondary caries detection is warranted.