28th Annual American Dentistry Congress

Despite the use of lasers in dentistry from the 1980s until today, the use of low level laser therapy laser (laser bio-stimulation) is

not very common in periodontology. Th e aim of this study is to evaluate the eff ect of low power 980 nm diode laser therapy aft er

gingivectomy and in comparison to the non-surgical periodontal treatment on bone healing. Twenty systemically healthy patients

with gingival hyperplasia due to chronic infl ammation in the maxilla or mandibular anterior region at least in 6 teeth symmetrically

were included. Bleeding on probing, gingival index, plaque index, clinical attachment levels were recorded at the beginning and 1

month aft er treatment. Th e patients were underwent scaling and root planning treatment aft er one week of periodontal diagnosis.

Th e curvatures of the gingiva of patients were evaluated for the need of gingivectomy and gingivoplasty and were done for the

patients that need this operation. Th e sides that applied laser therapies were determined by using coin toss and the other sides were

protected from irradiation by putting at least 5 mm thickness of silicon made appliance. the laser of power 4 J/cm (980 nm) were

applied at 0, 1, 3 and 7 days and the surgical area of all the patients at 0, 3, 7 and 15 days were painted with paint mira-2-tone and the

taken photographs by the Image J programs were evaluated. Clinically, Kolmogorov-Smirnov test was used for checking the normal

distribution of wound healing and VAS results. Willcoxon test and Friedman test were used to compare the dependent two groups or

multiple groups, subsequently. Th e results showed that there were no signifi cant diff erences between groups in SD, KAS, PI, GI, VAS

and wound healing but there were a decreased in VAS values at 3 and 7 days. Th e area that applied DDL showed a decrease in pain.

Aft er this study, 980 nm low level therapy upon the clinical parameters could have a positive eff ects when applied aft er gingivectomy

and gingivoplasty.