The effect of the slope inclination of buccal polished surface of mandibular denture base on food retention

summary The accumulation of food debris in the buccal vestibule can inhibit normal mastication and appears to be a factor that can cause patient discomfort. This study focused on the effect of the slope inclination of the buccal polished surface of the mandibular denture base on the ability to expel test‐food particles from the buccal vestibule. It was revealed that an inclination of the slope steeper than 80° markedly inhibits the normal ability to expel foods from the vestibule. It was revealed that the most appropriate inclination of the buccal slope is approximately 60° or 70°. These results could be utilized for constructing a denture prosthesis.