Water aerosol protective device used during tooth preparation for patients with a maxillectomy.

Maxillectomy often leads to oralnasal or excessive oral-pharyngeal communication. The remaining teeth may need further preparation for various reasons, including crown or fixed dental prosthesis restoration. High-volume water is used in conjunction with highspeed tooth preparation to avoid the excessive heat generation that could endanger the health of the pulp. The water aerosol generated by the highspeed handpiece can easily spread to the adjacent area. This could be challenging for patients with oral-nasal or excessive oral-pharyngeal communication, because the water can irritate the sensitive nasal or pharyngeal mucosa.