黃豪銘Lee; S.Y.; Huang; H.M.; Lin; C.Y.2026-05-222026-05-221999https://203.71.86.71/handle/123456789/27711en-US生醫材料暨組織工程研究所專利Method of detecting periodontal disease by detecting the natural frequency of a tooth, US Patent Number: 5951292patent