Effectiveness of Calcium Sodium Phosphosilicate based Desensitising Paste with Diode Laser Compared to Diode Laser Alone in the Management of Dentin Hypersensitivity- A Randomized Clinical Trial.

Dentin hypersensitivity(DH) has been defined as short, sharp pain arising from exposed dentin as a result of various stimuli, such as heat, cold,chemical or osmotic, which cannot be ascribed to any other form of dental defect or pathology(Holland et al 1997).Its often referred as “common cold of dentistry†due to its high prevalence which ranges from 2.8% to 74%. But most treatments available till date doesn’t give immediate relief and are effective only for a short while. An inorganic amorphous calcium and sodium phosphosilicate belonging to the group of materials known as bioactive glass is commercially available with the brand name Novamin is commonly prescribed by the dentists to the patients suffering from DH. Laser desensitization is also an efficient alternative for the immediate treatment of hypersensitivity. So this study is to compare the effect of application of calcium sodium phosphosilicate ( CSPS )bioactive glass with diode laser and diode laser alone in the management of dentin hypersensitivity as measured by visual analogue scale ( VAS ) score using the evaluation tests immediately after treatment, at 1st month and at 6th month and to asess the best treatment outcome. The study design is double blinded randomized clinical trial where the patients and the outcome asessor will be blinded. Patients reporting to the out patient clinic in the Dept of Conservative Dentistry & Endodontics complaining about dentin hypersensitivity, who satisfies inclusion and exclusion criteria will be selected as subjects. The subjects will be allocated into two different groups randomly and the treatment will be given to each group respectively. In the treatment A group diode laser treatment is given alone. In the other treatment arm B group combined diode laser and bioactive glass treatment will be given. The subjects will be asked to score the elicitated pain based on the VAS. The VAS scoring will be done before the start of the treatment, immediately after the treatment, again at 1st month and at 6th month. Results will be drawn at the end of the study.