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A case study by Naoki Hayashi, a dental technician at Tokushinkai Group, has been published in the dental medical journal "QDT".

August 10, 2026

 A paper written by Naoki Hayashi, a dental technician at the Tokushinkai Group, has been published in the dental medical journal "QDT". Hayashi is an honorary fellow of the American Academy of Aesthetic Dentistry (AAED), gives lectures around the world, and is a highly regarded dental technician both domestically and internationally, having published numerous papers and case studies.

 This paper focuses on "fluorescence," one of the optical properties of natural teeth, and measures and verifies the characteristics of dental ceramic materials. The natural brightness and vitality of natural teeth are created by the interaction of multiple phenomena such as light reflection, transmission, scattering, and fluorescence. In this study, we measured several materials and evaluated fluorescence separately from other optical elements to consider its clinical significance.

 This research leads to the creation of more natural and beautiful fillings and crowns that harmonize with each individual patient's mouth. At Tokushinkai Group, we utilize the knowledge gained from world-class research in our daily practice, striving to provide dental treatment that is not only functional but also aesthetically pleasing and provides long-lasting satisfaction.