Oral Health and Dental Management

Performance of laser fluorescence for residual caries detection in primary teeth

39^th Asia-Pacific Dental and Oral Care Congress

October 26-28, 2017 Osaka, Japan

Abdulmajeed Sultan Al Enazi

Al-Farabi College for Dentistry and Nursing, KSA

Posters & Accepted Abstracts: Oral Health Dent Manag

Abstract:

Objectives: Th e aim of this study was to evaluate the performance of a visual-tactile examination and a laser fl uorescence device for detecting residual dentinal caries aft er carious dentin removal with bur excavation, hand excavation and chemomechanical excavation (CarisolvTM). Methods: 30 extracted coronal caries primary second molars were used. Th e caries infected dentin has been removed. A blinded examiner checked all cavities for residual caries using a visual-tactile examination and laser fl uorescence. Th en the teeth were sectioned through the prepared cavities and the two halves of each tooth were processed for light microscopy and scanning electron microscopy (SEM). Th e presence or absence of residual caries was verifi ed using polarized light microscopy as the gold standard. Th e cavity fl oor dentin aft er removing carious dentin was examined using SEM. Results: In among all groups a signifi cant diff erence is determined between visual-tactile examination and laser fl uorescence (P<0.05). Th ere was an agreement between laser fl uorescence or visual-tactile examination and histological gold standard (P>0.05). In addition, SEM images of the surfaces with the caries removed have shown that a vast majority of the tubule openings is observed to be open in the samples of the carisolv group in opposition to the other groups. Conclusion: Th e laser fl uorescence system could be eff ective in checking the removal by other methods, such as bur or carisolv and avoid excessive removal of the sound dentin.