Abstract
Tooth bleaching is one of the most popular cosmetic dental procedures opted by the patients who desire pleasing smile. It is the simplest, least invasive means available to lighten discolored vital teeth. A number of desensitizing agents have been tried in an attempt to counteract bleaching-related sensitivity. This study was done to compare the effect of two different desensitizing agents for controlling post operative sensitivity after power bleach procedure. Sixty volunteers with mild to moderate dental fluorosis in maxillary anterior teeth, who fulfilled the inclusion and exclusion criteria, were randomly selected for this study. After the bleaching procedurea demo was given to the patient while application of desensitising gel and was instructed to use the gel for 14 days.All the patients were recalled at an interval of 1st day, 3rdday, 5th day, 7th day, and on 14th day to record the post operative sensitivity after power bleach procedure. The observations were analyzed using one way analysis of variance (ANOVA), Tukeys post hoc test. On the basis of VAS results, all the groups showed post operative sensitivity of varied intensity at different intervals. NCCP showed less sensitivity followed by CPP-ACP and Control group.
 Keywords: Power Bleaching, Post operative sensitivity, Nano Crystallized Calcium Phosphate, Casein Phosphopeptide-Amorphous Calcium Phosphate
Highlights
Dentin hypersensitivity (DH) is characterized by short or transient sharp pain arising from exposed dentin in response to an array of stimuli—such as thermal, mechanical, osmotic, or chemical substances. [1] The main predisposing factor to Dentin hypersensitivity is exposure of dentin, as a result of loss of enamel and/ or gingival recession
Post operative sensitivity was assessed at intervals of day 1, day 3, day5, day 7 and day 14.Patient’s were handed out VAS charts and were asked to mark a score correlating to their post operative sensitivity
Group II had shown lower VAS score when compared to group III
Summary
Dentin hypersensitivity (DH) is characterized by short or transient sharp pain arising from exposed dentin in response to an array of stimuli—such as thermal, mechanical, osmotic, or chemical substances. [1] The main predisposing factor to Dentin hypersensitivity is exposure of dentin, as a result of loss of enamel and/ or gingival recession. Dentin hypersensitivity (DH) is characterized by short or transient sharp pain arising from exposed dentin in response to an array of stimuli—such as thermal, mechanical, osmotic, or chemical substances. [1] The main predisposing factor to Dentin hypersensitivity is exposure of dentin, as a result of loss of enamel and/ or gingival recession. Sensitivity resulting from bleaching is seen most frequently in vital teeth. Calcium Phosphate, Varnishes, Novamin [3]. Nano Crystallized Calcium Phosphate (NCCP) is a desensitising and demineralizing agent. Since it's nanometric, the hydroxyapatite penetrates a lot of within the dentinal tubules and small fissures in enamel, promoting a highquality seal of the tubules and small fissures, and restores the microstructure of tooth and its chemical composition too
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