Content of research

When an intraoral appliance in this study is used as a palatal obturator, it does not require a clasp, unlike conventional palatal obturators (Fig. 1), because the adhesive gel can be fixed by contact with the oral mucosa. As a result, gingivitis caused by the clasp can be reduced; interference with the sideways growth of the row of teeth can be avoided; it can be comfortably worn without a sense of tightness or pressure; and it is safe to put on and take off the palatal obturator without damaging the oral cavity. It can also be worn before the teeth have erupted, allowing language training to begin at an early stage. The gel can also be thinly spread on the thin frame, and a uniform thickness can be obtained. This reduces the sense of discomfort when wearing the product and ensures a larger oral space, which is effective for language training by expanding the area where the tongue can move.

Potential for social implementation

• ・Palatal obturator
• ・Hotz plate
• ・Orthodontic floor appliances
• ・Dentures
• ・Mouthguard

Appealing points to industry and local governments

This research and development project is conducted in collaboration with the Laboratory of Soft and Wet Matter, Advanced Interdisciplinary Research Division, Graduate School of Advanced Life Science, Hokkaido University. If this device is put to practical use, it will considerably reduce the burden on cleft palate patients and is expected to make a significant contribution to speech therapy. This material can also be applied to the mucosal surface of the floor of dentures, etc., and we believe that it can be used innovatively in the dental field.