NCT02938364.

Methods	Study design: randomised, single‐blinded, clinical trial Country: Saudi Arabia Setting: clinics of Riyadh Colleges of Dentistry and Pharmacy (RCsDP) in Riyadh, Saudi Arabia Period of trial: not mentioned
Participants	Total number of participants (randomised?): 30 Age: above 18 years old Gender: not mentioned Inclusion criteria: 18 years and older (adult, older adult); the individual is able to give informed consent; patients with gag reflex severity that are assigned to a Gagging Severity Index (GSI) III‐IV (for standardization of the baseline severity in between Groups) Exclusion criteria: pregnant women; patients with chronic heart diseases or cardiac pacemakers; patients with central or peripheral nervous system disorders; patients with oral lesions; patients with gastrointestinal disorders
Interventions	Intervention: ear plugs (n = 10): the participant will be asked to put plastic ear plugs in both ears for 10 minutes and then the impression will be made while they are still on acupressure with sea band (n = 10): the participant will be asked to wear sea bands on P6 points of both hand wrists for 10 minutes and then the impression will be made while they are still on Control (n = 10): placebo bands: the participant will be asked to wear non‐pressure bands on both hand wrists for 10 minutes and then the impression will be made while they are still on
Outcomes	Outcomes reported: change from baseline Gagging Severity Index score change from baseline Visual Analogue Scale scoring of patient's satisfaction during impression making
Notes	Funding source: not mentioned Sample size calculation: not mentioned Adverse effects: not mentioned Attrition: not clear Trials registration: NCT02938364 Notes: full text of the published report not available, email was sent to the author on 5 June 2019, awaiting response