Participants
acrylic dentures, allergy/intolerance
Unless otherwise stated, participant criteria were the same for both studies. Written, informed consent was provided by each participant before any study‐specific procedures. Eligible edentulous participants were aged between 18 and 85 years and in good physical and mental health. Participants had conventional, full, acrylic dentures in maxillary and mandibular arches, which they self‐reported getting food trapped under while eating. Dentures needed to be fair‐ to well‐fitting, defined as a Kapur Index (Olshan Modification) retention and stability index sum score ≥6 (Supporting Information: Participants were ineligible if they were pregnant; breastfeeding; were receiving medication or had a medical condition that might interfere with the study; had any clinically significant or relevant oral abnormality; had an allergy/intolerance to study materials/ingredients or to peanuts/nuts or had received an investigational drug, cosmetic, or medical device within 30 days of screening. Participants could only have nonemergency dental/denture procedures performed during the study if allowed by the examiner.