162 - An Invitro Study Comparing Caries Detection Systems after SDF Application

Purpose: The aim of this study was to determine if SDF application altered the caries detection readings of the Spectra, Diagnodent and Canary system on extracted teeth.

Methods: Extracted third molars were collected and stored in 1% phenol. Fifty teeth having an ICDAS caries score of 5 were included in the study. ICDAS scores of 1,2,3,4,6 were excluded from the study. All selected teeth were mounted on plaster mount. Teeth were thoroughly cleaned with fine pumice and an identification number was assigned to the samples. The geometric center of the occlusal surface was considered as a designated site for taking readings for measuring caries. Baseline caries detection readings were taken using each system.

Then a drop of SDF was placed on each tooth and scrubbed for a minute. Following the SDF application, the Spectra, Diagnodent and Canary system were used to evaluate if Post -SDF readings differed from Pre-SDF readings. Then a histological evaluation was performed for all 50 teeth. A horizontal cut was made to separate the occlusal part of the tooth at the CEJ. Then a vertical cut was placed in the geometric center of the occlusal surface of the tooth to measure the depth of caries and depth of SDF penetration with a probe.

Results: Final results pending

Conclusion: Final results pending

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