发明授权
US08444675B2 Tooth-hardening apparatus 失效
牙齿硬化装置

Tooth-hardening apparatus
摘要:
A tooth-hardening apparatus according to the present invention includes a tooth-hardening member of a plate shape having a projection on its surface, and a nipple attached on the tooth-hardening member. The nipple has a predetermined hardness to provide a pacifier function and a tooth-hardening function. A space is formed in the tooth-hardening member. The space is covered with an upper transparent cover and a lower transparent cover.
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