BACKGROUND:Dental fear and anxiety are a typical deterrent and possibly stressful issue that jeopardizes children's and adolescents' access to dental care. Children are extremely sensitive to olfactory stimuli, making the aroma of hospital medications a trigger for dental anxiety and terror. Through non-pharmacological action, aromatherapy is extremely important in resolving this problem. AIM: To evaluate the effect of aromatherapy on salivary cortisol level and dental fear and anxiety in children MATERIALS & METHODS:50 children aged 6 to 12 constituted the sample size for this clinical trial. Saliva samples were collected from the patient before and after aromatherapy as part of the pre- and post-treatment processes, respectively. ELISA Cortisol test was used to determine the salivary cortisol in the salivary samples in both study and control group. After aromatherapy, it was seen that the salivary cortisol values significantly decreased. The results of the paired t test showed a statistically significant change (p value 0.05) in the salivary cortisol levels in the study group compared to the control group following aromatherapy. RESULTS:It was observed that the salivary cortisol values reduced significantly after aromatherapy. The paired t test values showed a significant change in the salivary cortisol levels after aromatherapy (statistically significant; p value<0.05). Considerable decrease in salivary cortisol scores was observed after aromatherapy. A significant difference in anxiety scores of lavender groups, a significant decrease of anxiety scores with an increase of age