Abstract: Objective: To evaluate the effect of lavender scent and music on patients' blood pressure, heart rate and pain during dental implant surgery. Methods: One hundred and sixty patients undergoing single tooth implantation were selected and divided randomly into four groups (40 in each group). In group A (control group), patients underwent surgery in routine condition. In group B (lavender group), patient underwent surgery in lavender scent condition. In group C (music group), patient underwent surgery in music condition. In group D (lavender + music group), patient underwent surgery in lavender and music condition. Patients' gender, age, dental fear value, blood pressure, and heart rate were recorded before surgery. Cardiogram monitor was applied to monitor patients' blood pressure and heart rate during surgery. The visual analogue scale (VAS)was assessed after surgery. Results: Blood pressure of group B, C, and D had no change before and during the surgery, while there was a rise in group A (P＜0.05). Heart rate of group B and C had no change before and during the surgery, while there was a rise in group A and a reduction in group D(P＜0.05). An evaluation of VAS did not show difference among group B, C, and D, while group A had higher VAS(P＜0.05). Conclusion: Lavender scent and music each can effectively sustain implant patients' blood pressure and heart rate during surgery and alleviate their pain at the same time, and the combination of both could lower the heart rate.

Key words: Dental implant, Lavender, Blood pressure, Heart rate