Related Experiment Video
Updated: Jan 27, 2026

Systematic Approach to Identify Novel Antimicrobial and Antibiofilm Molecules from Plants' Extracts and Fractions to Prevent Dental Caries
Published on: March 31, 2021
Comparison of different caries detectors for approximal caries detection
Esin Bozdemir1, Ali Murat Aktan2, Abdulsemih Ozsevik3
1Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkey.
Diagnosing approximal caries is challenging. Laser fluorescence (LF) devices offer the highest sensitivity for detecting caries, while bitewing radiography excels at identifying sound surfaces.
Area of Science:
- Dental diagnostics
- Caries detection technology
Background:
- Approximal caries detection is challenging with conventional visual inspection (VI) and radiography.
- Newer technologies like light-emitting diode (LED) and laser fluorescence (LF) offer potential improvements.
Purpose of the Study:
- To compare the diagnostic efficiency of LED, LF, radiography, and VI for approximal caries.
- Evaluate the accuracy, sensitivity, and specificity of these methods in vitro.
Main Methods:
- 156 approximal regions were evaluated using VI, radiography, LED, and LF devices.
- Histological analysis via stereomicroscopy served as the gold standard.
- Receiver operating characteristic (ROC) curves and diagnostic values were calculated.
Main Results:
- Bitewing radiography demonstrated high specificity (0.97-0.99).
- The LF device showed superior sensitivity (0.94 at T1, 0.79 at T2) compared to other methods.
- LF was more successful at T1 threshold, while VI was better at T2 threshold.
Conclusions:
- Bitewing radiography is effective for identifying sound tooth surfaces.
- The LF device is the most sensitive tool for detecting approximal caries, followed by the LED device.
Related Concept Videos
Linearization and Approximation
Application of Linearization and Approximation
Accuracy, limits, and approximation
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
Linear Approximation in Frequency Domain
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
Linear Approximation in Time Domain
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
Gas Chromatography: Types of Detectors-I
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...

