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Chinese Journal of Lasers, Volume. 48, Issue 1, 0107001(2021)

Observation of Dentin Ablation Using an Er∶YAG Laser in a Sub-Pulse Sequence Mode

Jianta Jiang1,2, Meng'en Wei1,2, Zhengdong Xiong1,2, Xianyou Wu1, Tingqing Cheng1, and Haihe Jiang1、*
Author Affiliations
  • 1Institute of Health & Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China;
  • 2University of Science and Technology of China, Hefei, Anhui 230026, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
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    References (19)
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    Figures & Tables(7)
    Schematic of sub-pulse sequence mode

    Fig. 1. Schematic of sub-pulse sequence mode

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    Output energy as a function of pump energy

    Fig. 2. Output energy as a function of pump energy

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    Schematic of dentin ablation experimental set-up

    Fig. 3. Schematic of dentin ablation experimental set-up

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    Variation of ablation mass with time

    Fig. 4. Variation of ablation mass with time

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    Temperature rise curve of pulp chamber

    Fig. 5. Temperature rise curve of pulp chamber

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    SEM images of dentin ablated by Er∶YAG laser. The sub-pulse widths: (a) 20 μs; (b) 30 μs; (c) 40 μs; (d) 50 μs

    Fig. 6. SEM images of dentin ablated by Er∶YAG laser. The sub-pulse widths: (a) 20 μs; (b) 30 μs; (c) 40 μs; (d) 50 μs

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    • Table 1. Thermal parameters of dentin

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      Table 1. Thermal parameters of dentin

      Thermal conductivity λ/(W·m-1·K-1)Specific heat c/(J·g-1·K-1)Density ρ/(g·cm-3)Absorption coefficient α/ m-1
      0.631.172.10.2×106
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    Jianta Jiang, Meng'en Wei, Zhengdong Xiong, Xianyou Wu, Tingqing Cheng, Haihe Jiang. Observation of Dentin Ablation Using an Er∶YAG Laser in a Sub-Pulse Sequence Mode[J]. Chinese Journal of Lasers, 2021, 48(1): 0107001

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    Paper Information

    Category: biomedical photonics and laser medicine

    Received: Jul. 14, 2020

    Accepted: Sep. 4, 2020

    Published Online: Jan. 13, 2021

    The Author Email: Haihe Jiang (hjiang@aiofm.ac.cn)

    DOI:10.3788/CJL202148.0107001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology