Clinical Research Directory

Inclusion Criteria: * Volunteers who agreed to participate in the study, * Individuals who will undergo intravenous blood sampling, * Aged between 18-65, * Those who have the cognitive ability to understand and answer the questions during the study, * Individuals who have not had any blood sampling experience in the past month were included in the study. Exclusion Criteria: * Individuals with any anatomical or functional issues related to the mouth, jaw, temporomandibular joint, or dental health, * Those with neurological disorders or conditions that could hinder chewing, such as difficulty swallowing (dysphagia), * Anyone with any skin or vascular problems in the area where the procedure will be done, * Those with a history of psychiatric medication use or a diagnosed anxiety disorder, * Individuals who have taken analgesic medication for any reason in the past 24 hours were not included in the study.