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Related Experiment Videos

Efficiency of 4 caries excavation methods compared.

Aine M Lennon1, Wolfgang Buchalla, Binja Rassner

  • 1Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zürich, Switzerland. aine.lennon@zzmk.unizh.ch

Operative Dentistry
|October 10, 2006
PubMed
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Fluorescence Aided Caries Excavation (FACE) significantly reduces caries removal time compared to conventional methods. While FACE and conventional excavation (CE) show similar results, FACE is more effective than caries detector dye (CD) and chemomechanical excavation (CS) in removing bacteria.

Area of Science:

  • Dentistry
  • Dental Materials Science
  • Minimally Invasive Dentistry

Background:

  • Dental caries excavation aims for complete removal of infected dentin while preserving healthy tooth structure.
  • Traditional excavation methods rely on visual and tactile cues, which can be subjective and time-consuming.
  • Novel techniques are being developed to improve the efficiency and accuracy of caries removal.

Purpose of the Study:

  • To compare the efficiency and effectiveness of Fluorescence Aided Caries Excavation (FACE) against conventional excavation (CE), chemomechanical excavation (CS), and caries detector dye (CD).
  • To evaluate the time required for caries excavation and the presence of residual bacteria using different methods.

Main Methods:

  • An in vitro study involving 25 teeth with dentin caries per group.

Related Experiment Videos

  • Caries excavation performed using FACE (violet light illumination and high-pass filter), CS (Carisolv application), CD (Caries Detector dye), and CE (visual-tactile criteria).
  • Excavation time recorded; histological analysis of thin slices to identify remaining bacteria.

    • Main Results:

    • FACE demonstrated significantly shorter excavation times (3 minutes, 3 seconds) compared to CS (5 min, 8 sec), CD (5 min, 26 sec), and CE (4 min, 2 sec).
    • Histological analysis revealed remaining bacteria in fewer samples for FACE (5/25) compared to CS (15/25) and CD (12/25).
    • FACE showed comparable bacterial removal to CE (11/25), with no statistically significant difference.

    Conclusions:

    • Fluorescence Aided Caries Excavation (FACE) is a highly efficient method for caries removal, significantly reducing chair time.
    • FACE achieves comparable or superior results in bacterial removal compared to conventional excavation (CE), caries detector dye (CD), and chemomechanical excavation (CS).
    • FACE offers a promising minimally invasive approach for effective and time-efficient caries management.