All patients who meet inclusion criteria of the study will be given a written consent and enrolled into a randomized double-blinded controlled study (investigator and patients are blinded about the study). Patients will be divided into lavender and control groups. Patients in lavender group will subjected 2 % lavender vapors. In control group, patients will inhale distal water vapors
the objective of this study is to evaluate the ability of olfaction in obtaining positive emotional and behavioral responses toward dental anxiety and pain in patients undergoing different dental procedures.