Kyungpook National University Industry-Academic Cooperation Foundation

Korea Advanced Institute of Science and Technology

Daegu Gyeongbuk Institute of Science and Technology

Hee Sung Lee

Jun Young Kim

Jae Youn Hwang

Min Kyu Je

Shin Yoon Kim

Jae Suk Choi

Anna Seo

Tae Yub Kwon

Sangyeon Youn

An Na Seo

A dental liner and a manufacturing method therefor are disclosed. The dental liner is a dental liner for coupling feldspar porcelain and zirconia and includes: silicon dioxide; aluminum oxide; 1,4-butanediol for maintaining the moisture of the dental liner and preventing the generation of layers; and a zirconia powder for coupling the dental liner and zirconia by strengthening chemical bonding of the dental liner and zirconia.

Dental liner and manufacturing method therefor

A smart screw according to an embodiment may comprise: a screw main body which penetrates an artificial joint including a shell disposed on a hip joint of an object and a liner disposed on the inner surface of the shell and is then inserted into the hip joint; a transducer including a coupling layer that senses a sound wave signal reflected from the liner, a piezo-electric layer formed to determine a frequency of the sound wave signal, and a sound absorbing layer for absorbing the sound wave signal; and a processing module for generating a sound wave signal toward the liner and receiving the sound wave signal sensed by the coupling layer, measuring the thickness of the liner on the basis of the received sound wave signal, and transferring data about the measured thickness of the liner to the outside.

Smart screw

Growing community of inventors

Daegu, South Korea

Hee Sung Lee