EVALUATION OF THE EFFECT OF DIODE LASER THERAPY ON POSTOPERATIVE SENSITIVITY IN NON CARIOUS CERVICAL LESIONS RESTORED WITH ACTIVATM BIOACTIVE RESTORATIVETM -A RANDOMISED CONTROL TRIAL

Abstract

AIM
? To assess the clinical effect of low level laser therapy just before placement of ActivaTM Bioactive RestorativeTM on Postoperative Sensitivity (POS) in Non Carious Cervical Lesions(NCCLs)
Materials and Methods
15 patients with two NCCLs were included (two different quadrants). Diagnosis depended on the chief complaint and a detailed history of the patient’s perception of sensitivity to thermal stimuli, sweet or sour foods, drinks and to tooth-brushing. The teeth were randomly assigned into two groups.
? Group I- Chair side application of Activa without laser irradiation
? Group II- Chair side application of Activa after laser irradiation
The two groups were subjected to tactile and air stimuli for assessing POS immediately, 14th, and 30th day after the treatment. Responses were recorded using VAS. The teeth in group II were subjected to irradiation from a low-power red laser of 810 nm, which was applied for 1 min on the axial wall of the cavity. Then, adhesive was applied after etching and prepared areas were restored with Activa Bioactive Restorative. In the Group I, the same procedure was performed but without laser simulation.
Statistical Analysis: Data were analyzed using SPSS V 23 software. Mean and Standard deviation were calculated. Independent T test was done to compare the values between two groups at different time intervals. Intragroup analysis was done using One way ANOVA. Tukey’s HSD post hoc test was done for multiple comparison.
Results: Pain scores after restorative procedures were significantly lower in the Group II compared to Group I (p<0.05). Although both groups experienced a significant improvement in postoperative discomfort throughout the follow-up periods (p<0.001), the changes in visual analogue scale (VAS) scores between baseline and each follow-up examination were significantly greater in the Group II than the Group I (p<0.05).
Conclusion: Low-level laser therapy (LLLT) before placement of Activa Bioactive Restoration could be suggested as a suitable approach to reduce POS in NCCLS. Further more studies were warranted for generalising the results. Keywords: Non Carious Cervical Lesions, Low-level laser therapy, Postoperative sensitivity, composite restoration