Participants
vomiting reflex, dentulous
ORAL MUCOSITIS
The study participants included 10 healthy adult dentulous individuals (5 males and 5 females, mean age 27.2 ± 1.6 years) who fully understood the purpose of the experiment and provided written consent. The exclusion criteria of this study were as follows: those with intraoral findings that would interfere with measurements (e.g., torus palatinus or oral mucositis), those with a vomiting reflex, and those undergoing medication therapy. However, none of the 10 participants met the above exclusion criteria; thus, all were included in the final study cohort. First, impressions of the maxillae of the 10 participants were taken. A palatal plate was fabricated on a plaster cast made from an impression, and the retentive force was measured under five conditions, including the use of four test substances and a control without any application. In addition, a subjective evaluation of the usability of the four test substances was conducted using a questionnaire. Each of the five conditions was evaluated on a different day.