IADR Abstract Archives

Performance of Commonly Used Diode Laser for Dental Treatment

Objectives: To evaluate the performance of two dental diode lasers at 445 nm, 810 nm, and 970 nm at pulse and continuous-wave mode.
Methods: This study examined two dental diode lasers, namely, SIROLaser Blue (445 nm, 970 nm), and AMD Lasers (810 nm). The performance of the lasers at their maximum power output were evaluated using a power meter. The study measured the range and the average of the power output at continuous-wave mode; and the peak as well as the average power output at pulse mode (50% duty cycle). Ten 30 s measurements were performed for each setting.
Results: The percentage change of the average power at continuous-wave mode for 445 nm, 970 nm and 810 nm lasers were +20.5%, +22.6%, -7.5%, and the range of variation between actual power and power displayed on the device panel were from +0.534 W to +0.662 W, +0.368 W to +0.519 W, and -0.269 W to -0.143 W separately. At pulse mode, the percentage change of the average power were +29.3%, +23.6%, -5.4% for 445 nm, 970 nm and 810 nm lasers separately. The percentage change of the peak power were +36.6%, +25.5%, -2.5%, with the range of variation from +1.032 W to +1.126 W, +0.496 W to +0.543 W, and -0.099 W to -0.058 W for 445 nm, 970 nm and 810 nm lasers separately.
Conclusions: The actual power output of this SIROLaser Blue diode laser is more than 20% higher than the power indicated on the device panel, whereas the actual power output of this AMD Laser is lower compared with the power displayed on the device panel.

2021 South East Asian Division Meeting (Hong Kong)
Hong Kong
2021
018
Dental Materials 6: Instruments and Equipment
  • Xue, Vicky Wenqing  ( Faculty of Dentistry, The University of Hong Kong , Hong Kong , Hong Kong ;  Shenzhen University Health Science Center, Shenzhen , Shenzhen , China )
  • Zhao, Irene Shuping  ( Shenzhen University Health Science Center, Shenzhen , Shenzhen , China )
  • Lo, Edward Chin Man  ( Faculty of Dentistry, The University of Hong Kong , Hong Kong , Hong Kong )
  • Chu, Chun Hung  ( Faculty of Dentistry, The University of Hong Kong , Hong Kong , Hong Kong )
  • None.
    National Natural Science Foundation of China (Project Number: 82001105).
    Oral Session
    Oral health research I
    Wednesday, 12/08/2021 , 10:15AM - 11:45AM