Comparative evaluation of the effectiveness of optical illusion, binaural beats and combination of both on pain perception and anxiety levels in children aged 8-10 years during local anesthesia administration: A randomized control trial

This randomized controlled trial is designed to evaluate and compare the effectiveness of three non-pharmacological distraction techniques—optical illusion using virtual reality, binaural beats, and a combination of both—on reducing pain perception and anxiety levels in children aged eight to ten years undergoing inferior alveolar nerve block during dental procedures. Effective pain and anxiety management is essential in pediatric dentistry to ensure cooperation and long-term positive dental behavior. Local anesthesia is often associated with discomfort and fear, making it necessary to explore child-friendly alternatives.

The study will follow a parallel-arm randomized design with one hundred and twenty participants equally divided into four groups. Group A will receive distraction through virtual reality headsets displaying optical illusions. Group B will listen to binaural beats through earphones. Group C will experience both interventions simultaneously, while Group D will serve as the control group without any distraction. Each intervention will be applied during the administration of local anesthesia, with binaural beats also played for ten minutes beforehand in the relevant groups.

Participants will be selected based on inclusion criteria such as age between eight and ten years, medically fit status, moderate dental anxiety levels, and need for inferior alveolar nerve block. Exclusion criteria include children requiring emergency treatment, those with systemic illness, previous painful dental experiences, or sensory impairments.

Pain perception will be assessed using the Wong Baker Faces Pain Rating Scale. Anxiety levels will be measured both objectively by monitoring heart rate before, during, and after anesthesia, and subjectively using the FLACC scale and the Modified Venham scale. The same clinician will perform all procedures in a controlled setting to minimize variability. Randomization will be done using color-coded ball selection. While blinding is not feasible for the operator and participants, both the outcome assessor and data analyst will be blinded to group allocations.

Statistical analysis will be conducted using SPSS software. One-way ANOVA will be used to compare differences between groups, and Tukey’s post hoc test will be applied for multiple comparisons. Ethical approval has been obtained from the Institutional Ethics Committee. Written informed consent will be taken from parents or guardians, and verbal assent will be obtained from the participating children.

The expected outcome of this study is to provide evidence for safe, cost-effective, and easily implementable distraction methods that can significantly improve the dental experience for children. If proven effective, these techniques could reduce the need for sedation or physical restraint, promote cooperative behavior, and be integrated into routine pediatric dental practice. The results may also inspire further research into sensory-based behavior management in pediatric healthcare.