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Micron-scale human enamel layer characterization after orthodontic bracket debonding by intensity-based layer
Naresh Kumar Ravichandran1,2, Hemanth Tumkur Lakshmikantha3, Hyo-Sang Park3
1School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, Republic of Korea.
Scientific Reports
|May 26, 2021
Summary
Optical coherence tomography (OCT) offers a non-destructive method to assess enamel loss during orthodontic bracket bonding. This technology enables precise measurement of tooth enamel changes after each treatment step.
Area of Science:
- Biomaterials Science
- Dental Research
- Medical Imaging
Background:
- Fixed orthodontic brackets are standard for tooth movement but may damage tooth enamel.
- Quantitative assessment of enamel surface changes is crucial for optimizing orthodontic procedures.
- Existing methods for enamel evaluation may have limitations in precision or invasiveness.
Purpose of the Study:
- To demonstrate the applicability of optical coherence tomography (OCT) for non-ionizing and non-destructive assessment of enamel loss during orthodontic bracket bonding.
- To evaluate the quantitative changes in tooth enamel thickness and structure after each step of orthodontic treatment.
- To develop and validate algorithms for analyzing enamel abrasion and wear.
Main Methods:
- Utilized two-dimensional and volumetric optical coherence tomography (OCT) imaging for enamel evaluation.
- Developed software algorithms for depth intensity profile analysis to calculate enamel layer thickness changes.
- Implemented an intensity-based layer segmentation algorithm to detect enamel abrasion and wear.
- Quantified total enamel present after each treatment procedure for analysis.
Main Results:
- Demonstrated the practical application of OCT in measuring enamel loss during orthodontic bracket bonding.
- Successfully quantified changes in enamel layer thickness and identified enamel abrasion.
- Provided a method for evaluating enamel wear after each procedural step.
- Tabulated total enamel measurements for comprehensive analysis.
Conclusions:
- Optical coherence tomography (OCT) is a viable, non-destructive tool for assessing enamel integrity in orthodontics.
- The developed algorithms enable precise quantitative analysis of enamel loss and wear.
- This approach supports informed decisions for optimizing orthodontic treatment procedures to minimize enamel damage.
