299COMPARATIVE EVALUATION BETWEEN RELATIVE EFFICACY OF THREE PERIODONTAL DRESSINGS AFTER CONVENTIONAL DEPIGMENTATION: A CLINICAL STUDYThe guiding principle for depigmentation treatment is the patient‟s concern with respect to his/her cosmetic appearance. So, the present study was carried out to determine the efficacy of three different types of non- eugenol periodontal dressings namely Coe-pak, Barricaid and Cyanoacrylate dressings after performing conventional depigmentation. To achieve this aim, the following objectives evaluated post-operatively were colour of the gingiva, area of pigmentation and post-operative pain at 1 week, 1 month and 3 months postoperatively. Area of pigmentation at baseline was measured for all the three groups No repigmentation occurred at one week and one month time period but at 3 month recall, some patches of pigmentation were present which were measured. When post-operative pain was measured, statistically significant results were seen in intra-group comparison from baseline to one week and from one week to 1 month, whereas non-significant results were seen on inter-group analysis between the three dressings at all time points. All the three periodontal dressings demonstrated improvement in the colour of gingiva, area of pigmentation and post-operative pain. Within the limitations of this study, there was no statistical significant difference between the three periodontal dressingsdrarun922 @gmail.comResearch582015Depigmentation, Coe-pak,Barricaid,Cyanoacrylate,Periodontal dressingsNaveen Sangwan,Rajat Gothi,Ashutosh Kaushik,Jitesh Wadhwa,Arun Kumar Department of Periodontology, Consultant at Oral Health Department, Oscar Hospital, Medical Mor, Rohtak, India, Senior lecturer, Department of Periodontology, Daswani Dental College and Research Centre, Ranpur, Kota, Rajasthan, India., Senior lecturer, Department of Orthodontics, Daswani Dental College and Research Centre, Ranpur, Kota, Rajasthan, India.,Senior lecturer, Department of Orthodontics, Inderprastha Dental College, Sahibabad, India.,Assistant Professor, Department of Pedodontics and Preventive Dentistry, Post Graduate Institute of Dental Sciences, Rohtak-124001, Haryana, India.