This learning aid is an oral hygiene model made as an open-close mouth model with upper and lower dental arches, molded teeth, and a visible mouth interior for clear viewing during instruction. Designed as a brushing practice model, it helps demonstrate tooth-cleaning motions in a hands-on route for classroom or demonstration use. The model uses metal coil-like hinges to connect the upper and lower sections, allowing the mouth to open and close smoothly during repeated use. The white outer base, white teeth, and pink-red gum areas create a simple, easy-to-see layout that helps focus attention on the mouth structure. As an oral hygiene teaching model, it supports step-by-step brushing demonstration and makes it easier to explain tooth and gum areas during learning sessions.
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