Comparative Evaluation The Effect of Diode laser(980nm)Versus Topical Desensitizing Tooth Paste in Cervical Dentine Hyper sensitivity

Abstract

to compare the effectiveness of two desensitization therapies the diode laser (980nm) and topical desensitizing tooth paste containing potassium nitrate in patient with dentine hypersensitivity(DH) symptoms. Method: A randomized clinical trial (RCT) using split mouth method 21 teeth of 1 patient who had been referred by periodontists in periodontic clinic of the faculty of dentistry, Karrary university, evaluation of pain due to dentine hypersensitivity had been confirmed by using visual analogue scale. The diode laser (980nm) fiber glass tip with diameter of 600 nm was focused on cervical area of the tooth presented with sensitivity on non-contact method for 90 second at 1 wt. The scores were attributed before, immediately after and after (72 hours,1week desensitizing agent the reduction of pain immediately was 44.3%, after 1 week laser application the results showed that the pain was reduced in 38.7% compared to topical desensitizing agent the reduction of pain after 1 week was 17.3% so the laser was effective after 1week in compared to topical desensitizing agent Conclusion: the laser and topical desensitizing agent containing sodium nitrate were effective to treat dentine hypersensitivity however the laser was more effective in long period of time. ) from time of laser application.Result: diode laser (980nm was found to be effective for treatment of dentine hypersensitivity, the results showed that the reduction of pain immediately after laser application was 38.7%, compared to topical .