The Journal of Contemporary Dental Practice

Register      Login



Volume / Issue

Online First

Related articles

VOLUME 10 , ISSUE 6 ( November, 2009 ) > List of Articles


A New Concept in Restorative Dentistry: Light-Induced Fluorescence Evaluator for Diagnosis and Treatment: Part 1 – Diagnosis and Treatment of Initial Occlusal Caries

Hervé Tassery, Stephen Koubi, Elodie Terrer, Alexandro Dionne, Gauthier Weisrock, Caroline Sarraquigne, Alain Mazuir

Citation Information : Tassery H, Koubi S, Terrer E, Dionne A, Weisrock G, Sarraquigne C, Mazuir A. A New Concept in Restorative Dentistry: Light-Induced Fluorescence Evaluator for Diagnosis and Treatment: Part 1 – Diagnosis and Treatment of Initial Occlusal Caries. J Contemp Dent Pract 2009; 10 (6):86-94.

DOI: 10.5005/jcdp-10-6-86

License: CC BY-NC 3.0

Published Online: 01-10-2015

Copyright Statement:  Copyright © 2009; The Author(s).



The objective of this in vivo experiment is to propose an innovative therapeutic concept using a light-induced fluorescence evaluator for diagnosis and treatment (LIFEDT) that is based on the imaging and autofluorescence of dental tissues.


Processes with the aim of diagnosing carious lesions in the initial stage with optimum sensitivity and specificity employ a wide variety of technologies, but like the conventional diagnosis tools, they remain either inefficient or too subjective.


This experiment evaluated a fluorescence light-induced camera that illuminates tooth surfaces within an excitation radiation band of light with a wavelength of 450 nm and facilitates a high magnification image.


An analysis of 50 occlusal grooves revealed three clinical forms of enamel caries: (1) enamel caries on the surface, (2) suspicious grooves with a positive autofluorescent red signal, and (3) suspicious grooves with a neutral fluorescent dark signal. Two decision-making diagrams were proposed in accordance with international recommendations for preventive dentistry, but modified as a result of the accurate information obtained with this new LIFEDT device.

Clinical Significance

The lighting of suspect occlusal grooves with the SoproLife® camera enables observation of any variations in the optical properties to refine a caries diagnosis and facilitates more than a 50x magnification of occlusal groove anatomy to provide additional information on the carious potential of the tooth surface.


Terrer E, Koubi S, Dionne A, Weisrock G, Sarraquigne C, Mazuir A, Tassery H. A New Concept in Restorative Dentistry: Light-Induced Fluorescence Evaluator for Diagnosis and Treatment: Part 1 – Diagnosis and Treatment of Initial Occlusal Caries. J Contemp Dent Pract [Internet]. 2009 Nov; 10(6):086-094. Available from: volume10-issue6-terrer.

PDF Share
  1. Comparison of different methods for the diagnosis of fissure caries without cavitation. Caries Res. 1993; 27(5):409-16.
  2. Fluorescence-controlled Er:YAG laser for caries removal in permanent teeth: a randomized clinical trial. Eur J Oral Sci. 2008; 116(2):170-6.
  3. Dentine caries: take it or leave it? Dent Update. 2000; 27(6):272-6.
  4. A method for the detection and quantification of bacteria in human carious dentine using fluorescent in situ hybridisation. J Dent. 2002; 30(7-8): 359-63.
  5. In vitro validation of carious dentin removed using different excavation criteria. Am J Dent. 2003; 16(4):228-30.
  6. “ICDAS”—an international system for caries detection and assessment being developed to facilitate caries epidemiology, research and appropriate clinical management. Community Dent Health. 2004; 21(3):193-8.
  7. A review of potential new diagnostic modalities for caries lesions. J Dent Res. 2004;83 Spec No C:C89-94.
  8. Restorative treatment decision making with unaided visual examination, intraoral camera and operating microscope. Oper Dent. 2006; 31(1):55-9.
  9. Minimal intervention dentistry—a review. FDI Commission Project 1-97. Int Dent J. 2000; 50(1):1-12.
  10. A proposal for a new classification of lesions of exposed tooth surfaces. Int Dent J. 2006; 56(2):82-91.
  11. Modern concepts of caries measurement. J Dent Res. 2004;83 Spec No C:C43-7.
  12. Cariogram—a multifactorial risk assessment model for a multifactorial disease. Community Dent Oral Epidemiol. 2005; 33(4):256-64.
  13. Caries risk assessment in practice for age 6 through adult. J Calif Dent Assoc. 2007;35(10):703-7, 710-3.
  14. Clinical protocols for caries management by risk assessment. J Calif Dent Assoc. 2007; 35(10):714-23.
  15. Detection, diagnosing, monitoring and logical treatment of occlusal caries in relation to lesion activity and severity: an in vivo examination with histological validation. Caries Res. 1998; 32(4):247-54.
  16. Occlusal caries: pathology, diagnosis and logical treatment. Dent Update. 2001; 28(8):380-7.
  17. J Dent Res 2004;83(Spec Iss C):C67-C71.
  18. Chairside testing for cariogenic bacteria: current concepts and clinical strategies. J Minim Interv Dent. 2008; 1(2):126-49.
  19. com [Internet]. Johannesburg, South Africa: midentistry corp. MI Clinical Dental Practice. Available from:
  20. Pit and fissure sealants for preventing dental decay in the permanent teeth of children and adolescents. Cochrane Database Syst Rev. 2008; (4):CD001830. DOI: 10.1002/14651858. CD001830.pub3.
  21. Performance of fluorescence methods, radiographic examination and ICDAS II on occlusal surfaces in vitro. Caries Res. 2008; 42(4):297-304.
  22. The International Caries Detection and Assessment System (ICDAS): an integrated system for measuring dental caries. Community Dent Oral Epidemiol. 2007; 35(3):170-8.
  23. Comparison of quantitative light-induced fluorescence (QLF) and digital imaging applied for the detection and quantification of staining and stain removal on teeth. J Dent. 2006; 34(7):460-6.
  24. Evaluating the objectivity of caries removal with a caries detector dye using color evaluation and PCR. J Dent. 2007 35(9):749-54.
  25. Ultraconservative and cariostatic sealed restorations: results at year 10. J Am Dent Assoc. 1998; 129(1): 55-66.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.