International Dental Journal 58(3): 151-158 Aim: To investigate, using a randomised-controlled, single clinical trial whether treating periodontitis with non-surgical periodontal treatment procedures and laser applications can decrease the effect of oral malodour and compare the effectiveness of the different therapies. Methods: Sixty patients suffering from chronic periodontitis and complaining of oral malodour were included in the study. The parameters measured included organoleptic scoring, volatile sulphur compound (VSC) levels, gingival index, plaque index, probing depth and clinical attachment levels before and after the different treatment procedures (oral hygiene instructions, scaling-root planing-SRP and subgingival Nd: YAG laser irradiation). Results: There were significant relat...

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