laser in dentistry: dental caries diagnosis

1. EARLY DETECTION, DIAGNOSIS ANDEARLY DETECTION, DIAGNOSIS AND
QUANTIFICATION OF DENTAL CARIESQUANTIFICATION OF DENTAL CARIES
BY USING LASER FLUORESCENCEBY USING LASER FLUORESCENCE
Dr.Rana Tariq JameelDr.Rana Tariq Jameel

2. DENTAL CARIESDENTAL CARIES
Dental caries is a dynamic process taking place inDental caries is a dynamic process taking place in
the microbial deposits on the tooth surface. Itthe microbial deposits on the tooth surface. It
results in a disturbance of the equilibrium betweenresults in a disturbance of the equilibrium between
the tooth surface and the surrounding plaque fluidthe tooth surface and the surrounding plaque fluid
so that, over time, the net results may be a loss ofso that, over time, the net results may be a loss of
mineral from tooth surface in which carious lesionmineral from tooth surface in which carious lesion
can be occurred as a result of that processcan be occurred as a result of that process

3.  to identify high risk of caries before disease occurs.to identify high risk of caries before disease occurs.
to allow initiation of appropriate preventive services .to allow initiation of appropriate preventive services .
 to treat the disease with non invasive and non destructiveto treat the disease with non invasive and non destructive
methods.methods.
An early diagnosis of dental caries is of a majorAn early diagnosis of dental caries is of a major
importance as time and money are spent on preventionimportance as time and money are spent on prevention
become more effective and more likely to replace the classicalbecome more effective and more likely to replace the classical
restorative treatment .restorative treatment .
Accurate diagnosis of the presence, extent and activity ofAccurate diagnosis of the presence, extent and activity of
dental caries process is a fundamental requirement indental caries process is a fundamental requirement in
dental health care :dental health care :

4. DIAGNOSIS OF DENTAL CARIESDIAGNOSIS OF DENTAL CARIES
finding the disease & deciding the stage offinding the disease & deciding the stage of
diseasedisease

5. DETECTION OF DENTAL CARIESDETECTION OF DENTAL CARIES
finding the diseasefinding the disease
Quantification of dental cariesQuantification of dental caries
Digital measurements of lesion progressionDigital measurements of lesion progression

7. METHODS FOR LASERMETHODS FOR LASER
DIAGNOSIS FOR DENTALDIAGNOSIS FOR DENTAL
CARIESCARIES
* QUANTITATIVE LIGHT INDUCED* QUANTITATIVE LIGHT INDUCED
AUTOFLUORESCENCEAUTOFLUORESCENCE
**NEAR INFRARED FLUORESCENCENEAR INFRARED FLUORESCENCE

8. QUANTITATIVE LIGHT INDUCEDQUANTITATIVE LIGHT INDUCED
AUTOFLUORESCENCEAUTOFLUORESCENCE

9. ArgonArgon
ion laserion laser
λ=488 nmλ=488 nm

12. ))NEAR INFRARED FLUORESCENCENEAR INFRARED FLUORESCENCE((DIAGNOdentDIAGNOdent

14. Tooth 1Tooth 1
DIAGNOdent: 28DIAGNOdent: 28

15. Tooth 2Tooth 2
DIAGNOdent: 90DIAGNOdent: 90

16. Tooth 3Tooth 3
DIAGNOdent: 31DIAGNOdent: 31