The Impact of Nitrous Oxide Sedation on Dental Fear and Anxiety Scores in Children Aged 6-10 Years

Inclusion Criteria: * 1.Aged 6-10 years; 2.Classified as American Society of Anesthesiologists (ASA) physical status I-II; 3.Required dental treatments such as caries filling, pulp therapy, or tooth extraction; 4.Informed consent obtained from the child's guardian. Exclusion Criteria: * 1.Contraindications to nitrous oxide inhalation, such as severe cardiopulmonary dysfunction, intestinal obstruction, or pneumothorax; 2.Mental illness or intellectual disability that would hinder cooperation with assessments or treatment; 3.Received dental sedation or general anesthesia within the past month;