Hekmatian 2012.
| Methods | Study design: unclear if randomised or non‐RCT Country: Iran Setting: radiology department of the School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran Period of trial: not mentioned |
| Participants | Total number of participants (randomised?): 84 Age: mean age was 24.6 ± 0.8 years Gender: not mentioned Inclusion criteria: patients admitted to the radiology department of the dentistry school; informed consent; no central or peripheral nervous system disorders or had any oral lesions; high co‐operation Exclusion criteria: patients who suffered from any type of central or peripheral nervous system disorders; any oral lesions |
| Interventions | Intervention: E angustifolia lozenges (n = 42) Control: placebo lozenges (n = 42) Intervention details: E angustifolia lozenges (the saturated sugar solution and the heated concentrated E angustifolia were mixed (80 mg fruit concentrate and 100 ml syrup) and were poured into the same mould to make 1 mg tablets) Placebo lozenges (placebo was made of water and sugar) Each patient sucked a lozenge in their mouth until it was completely dissolved. After 5 minutes, the patient felt senselessness in the soft palate and pharyngeal tonsil. The patient was then evaluated regarding the intensity and degree of gag reflex in the soft palate and pharyngeal tonsils. |
| Outcomes | Outcomes reported:
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| Notes | Funding source: not mentioned Sample size calculation: simple non‐probability sampling Adverse effects: not mentioned Attrition: nil Trials registration: not registered Notes: email sent for additional information regarding randomisation and nature of participants on 12 June 2014; no reply received |