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

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Does DIAGNOdent provide a reliable caries-removal endpoint?

Aline A Neves¹, E Coutinho, Jan De Munck

¹Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium.

Journal of Dentistry

|February 22, 2011

Summary

Laser-induced fluorescence (LIF) measurements are influenced by residual dentine staining, questioning its reliability for determining caries removal endpoints. Further research is needed to validate diagnostic tools for dental caries.

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Area of Science:

Dental materials science
Caries diagnosis
Biomaterials engineering

Background:

Accurate determination of caries removal endpoint is crucial for preserving tooth structure.
Various techniques exist for caries excavation, each with potential impact on residual dentine.
Laser-induced fluorescence (LIF) is a diagnostic tool explored for assessing caries removal effectiveness.

Purpose of the Study:

To compare the mineral density of residual dentine following different caries removal techniques.
To evaluate the diagnostic potential of LIF, measured by DIAGNOdent, for determining the caries-removal endpoint.

Main Methods:

Caries excavation using burs, sono-abrasion, and chemo-mechanical methods.
Micro-computed tomography (micro-CT) scanning to assess mineral density of residual dentine.
Correlation of mineral density with LIF measurements and analysis of dentine staining (CIE-L*a*b).

Main Results:

No significant difference in residual dentine mineral density across most techniques, except for one enzyme-based method showing higher density.
Absence of residual caries correlated with darker dentine staining.
A strong negative correlation between L* values (staining) and LIF measurements was observed.

Conclusions:

Dentine staining significantly influences LIF measurements, potentially leading to inaccurate assessments.
The reliability of LIF (DIAGNOdent) for determining the caries-removal endpoint is questionable due to staining interference.