ABSTRACT
Background: The laser therapy has been used as an adjuvant for conventional periodontal disease as they exhibit a bactericidal effect on scaling and root planning by its thermal and photo disruptive effects on the pathogens. This study focuses on the structural and compositional changes induced on the root surfaces of teeth following diode laser (DL) application with increasing quantum of exposure time. Objective: The objective of this study was to evaluate the structural and compositional changes on the root surface of extracted human permanent teeth after application of DLs (810 nm) with varying time interval. Materials and Methods: Twenty samples of single?rooted periodontally compromised extracted teeth were utilized for this study. Root planning was done and the roughness caused by the instrumentation was measured using profilometric analysis. Then, the samples were divided into four groups, with DL application time: Group 1 – laser application for 15 s, Group 2 – laser application for 30 s, Group 3 – laser application for 45 s, and Group 4 – laser application for 60 s. A scanning electron microscope was used to examine the cemental surface and energy?dispersive X?ray analysis software assesses the compositional changes of the teeth in each group. Results: This study reveals that on exposure of DL (810 nm) on the root surface when time of exposure increases, there were relative increases in surface irregularities and charring. There were significant changes in the chemical composition of the tooth surface.
ABSTRACT
The objective of periodontal surgery is to restore periodontal health and to prevent further relapse. Traditionally scalpels were used in periodontal surgery. Recent advancements in laser have set a milestone in the field of periodontal surgery. So considering the above facts, the objective of this case series is to analyze the pre and post–operative results obtained between conventional periodontal flap surgery and diode laser assisted periodontal flap surgery. Two chronic periodontitis patients with generalized probing pocket depth of more than 7mm was selected for this clinical study. Both the patients had angular bone loss in the upper quadrant and generalized horizontal bone loss in the lower quadrant. So scalpel periodontal surgery was planned for the upper quadrant and diode- laser assisted flap surgery in the lower quadrant. Post-operative results based on clinical parameters and patient perspective were recorded. Clinically significant improvement in probing pocket depth and clinical attachment levels were observed in both the surgical sites. Patient acceptance and comfort were more in laser treated sites compared to conventional surgical sites.