This study tests whether a custom-made silicone earplug placed in the ear can reduce the gag reflex and stress in 40 adults undergoing root canal treatment. Participants with severe gagging are randomly assigned to receive either the earplug or standard care. Researchers will mea…
Phase: NA • Sponsor: Beyhan Başkan • Aim: Symptom relief
Last updated Jun 27, 2026 12:05 UTC