Evaluating the Effect of Laser Acupuncture on Hegu Acupoint for Managing Gag Reflex and Anxiety in Pediatric Patients Aged 6-10 Years

Abstract

Introduction: Managing gag reflex and anxiety in pediatric dentistry, especially during maxillary impressions, is challenging. Traditional methods like behavioural techniques, sedation, and anaesthesia have limitations or risks. Acupuncture and acupressure offer alternative approaches, but needle-based acupuncture may be unsuitable for children. Low-level laser therapy (LLLT) provides a non-invasive, painless option by stimulating acupoints. This study evaluates the effectiveness of LLLT at the Hegu (LI4) acupoint in controlling gag reflex and anxiety in pediatric patients.

Material and Methods: Forty children aged 6–10 years with a hyperactive gag reflex (Gagging Severity Index score 3–5) were randomly divided into two groups: Group A received no treatment followed by LLLT, while Group B received LLLT first, then a control impression. Triple blinding was applied to participants, clinicians, and assessors. Pulse rate, oxygen saturation, and anxiety levels (usingModified Child Dental Anxiety Scale) were recorded.

Results: Group A showed a significant reduction in pulse rate, anxiety scores, and gagging severity after LLLT (p = 0.001), while Group B experienced increased anxiety and gagging severity after LLLT was stopped. Oxygen saturation remained unchanged (p > 0.05).

Conclusion: LLLT is a safe, non-invasive, and painless alternative to traditional anti-gagging methods, promoting better compliance in pediatric dental procedures.