He practiced the research by imaging the light produced by the masticatory force between the cracked tooth, using the photodetector and mechanoluminescence. Mechanoluminescence is a substance that produces illumination with mechanical forces, which can be applied to many forces not only in masticatory force but also to friction force and stress. Previous cracked tooth diagnostic methods have difficulties in distinguishing a crack in the tooth and a scratch and have problems of not being able to identify cracks in sizes below micrometers (μm). Professor Lim Won-bin's research team's paper used mechanoluminescence, capable of masticatory force, to pre-diagnose micro-cracks that could not be identified with previous methods.

The instructing professor Lim Won-bin also won 2nd prize in the same field at the 13th Humantech Paper Awards.

Meanwhile, Humantech Paper Awards gives gold, silver, bronze, and participatory awards in 10 fields such as basic science and material science, with only one Grand Award. According to Samsung Electronics, 1,991 papers were registered for this year's Paper Awards.