Country Representative of WFLD; Board of WFLD APDivision; Board of JSLD. received his DDS from the Osaka Dental University, Japan in 1987 and studied at the Harvard School of Dental Medicine as a Clinical Fellow from1989-1992. He practiced at the Massachusetts Veterans Administration Medical Center and General Hospital in 1991. He received his PhD from Tokyo Medical and Dental University. Dr. Nagai serves as a Board member of the Japanese Society for Laser Dentistry, Asia and Pacific Division of the WFLD (International Society for Lasers in Dentistry), the Japan Society for Dental Anti-Aging and Vice President of the Japanese Academy of Color for Dentistry. He is a committee member of the Japan Academy of Esthetic Dentistry, Japan Society for Laser Surgery and Medicine and Japan Association of Microscopic Dentistry; President and Chief Instructor for the Japanese Chapter of the Academy of Laser Dentistry. He was awarded the Leon Goldman Award for Clinical Excellence in Laser Dentistry from the Academy of Laser Dentistry in 2010 and the Excellent Presentation Prize of the Japanese Academy of Color for Dentistry in 2008. Dr. Nagai maintains a full-time private dental practice in Tokyo, Japan and visiting lecturer at Tokyo Medical and Dental University Photoperiodontics, Department of Periodontology.

Lasers in Esthetic Dentistry

Lasers have been be used for various treatment in dentistry. Especially in recent years, the understanding of the clinical application of lasers has deepened, and lasers have come to be used in more complicated and difficult cases. The usage of lasers has made treatment easier, faster, and more reliable. In particular, treatment in the aesthetic area is often complicated and difficult because aesthetics are evaluated at the same time as their function. The treatment must be done under enough examinations and diagnosis. Since there are various types of lasers used, a good prognosis can be expected by selecting the appropriate device for each treatment. Since dental treatment targets teeth, gums, and bones, the key to success is an understanding of each tissue and the selection of laser device. Selecting the correct laser device and setting appropriate parameters for treatment lead to successful esthetic dentistry.

On-line: Clinical risk management in laser dentistry

Classification of laser equipment defined by IEC（International Electrotechnical Commission）is widely used. The classification is based on the degree of danger of the laser equipment to the human body. Care must be taken not to irradiate the human body with the laser beam, but if the benefits outweigh the profit and loss, the human body is irradiated with the laser. A typical irradiation to the  human body with laser light is a medical practice. Medical laser devices have been used for treatment and examination. Many laser devices have also been used in dentistry. Now the laser treatment has become commonplace in dentistry, it is necessary to pay attention to its safe use. This lecture will discuss safety controls and possible accidents and complications that can occur when using laser equipment in dentistry.