Related Experiment Video
Updated: Jan 21, 2026
05:42
Detection and Removal of Tooth-Colored Composite Resin Using the Fluorescence-Aided Identification Technique
Published on: July 27, 2022
4.3K
Fluorescence-aided Composite Removal in Directly Restored Permanent Posterior Teeth
Operative Dentistry
|August 3, 2019
Summary
The fluorescence-aided identification technique (FIT) significantly improves composite removal efficiency and selectivity in dental restorations. This method offers faster procedures with less tooth substance loss and composite residue compared to conventional techniques.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Biomaterials
Background:
- Composite restorations are common in posterior teeth.
- Complete removal of old composite is crucial for successful re-restoration.
- Conventional removal methods can be time-consuming and may damage tooth structure.
Purpose of the Study:
- To quantitatively compare the conventional composite removal technique with the fluorescence-aided identification technique (FIT).
- To assess completeness, selectivity, and duration of composite removal.
- To evaluate the efficacy of FIT in directly restored permanent posterior teeth.
Main Methods:
- Standardized direct class II composite restorations were removed from human tooth models.
- Two techniques were compared: conventional (contra-angle handpiece) and FIT-supported.
- Procedure duration was recorded, and completeness/selectivity were assessed volumetrically using 3D surface scans.
Main Results:
- FIT-supported removal was significantly faster (179s vs 329s).
- FIT resulted in less tooth substance loss (2.77 mm³ vs 4.53 mm³).
- FIT left less composite residue (0.53 mm³ vs 1.58 mm³).
Conclusions:
- FIT facilitates selective and expeditious removal of composite restorations.
- This technique offers improved efficiency and preservation of tooth structure.
- FIT is a promising adjunct for composite removal in clinical practice.
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