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Related Experiment Video

Updated: Dec 28, 2025

In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder
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Er,Cr:YSGG Laser Performance Improves Biological Response on Titanium Surfaces.

Wan-Ling Yao1, Jerry Chin Yi Lin1, Eisner Salamanca1

  • 1School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan.

Materials (Basel, Switzerland)
|February 13, 2020
PubMed
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This summary is machine-generated.

Erbium, chromium-doped yttrium scandium gallium garnet (Er,Cr:YSGG) laser treatment smoothed titanium implant surfaces, reducing Porphyromonas gingivalis adhesion and bacterial colonization. This laser therapy enhanced fibroblast viability and osteoblast differentiation, offering a promising approach for managing peri-implantitis.

Area of Science:

  • Biomaterials Science
  • Dental Implantology
  • Microbiology

Background:

  • Porphyromonas gingivalis infection is a key factor in dental implant failures, often leading to peri-implantitis.
  • Implant surface roughness significantly influences P. gingivalis adhesion, exacerbating peri-implantitis and subsequent cell adhesion.
  • Effective management strategies are crucial to prevent implant failure and address peri-implantitis.

Purpose of the Study:

  • To investigate the impact of Er,Cr:YSGG laser treatment on titanium (Ti) disc surfaces.
  • To evaluate the effects of laser treatment on P. gingivalis adhesion and fibroblast viability.
  • To assess the potential of Er,Cr:YSGG laser as an adjunctive therapy for peri-implantitis management.

Main Methods:

  • Titanium discs were treated with either autoclaving (control) or Er,Cr:YSGG laser (test).
Keywords:
Er,Cr:YSGG laserTi discsdental implantlaser treatment

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  • Surface characteristics were analyzed using SEM, EDX, and XPS; surface roughness and wettability were measured.
  • Bacterial adhesion, fibroblast viability (WST-1 assay), and osteoblast differentiation (ALP assay) were assessed.

    • Main Results:

    • Er,Cr:YSGG laser treatment resulted in smoother Ti surfaces compared to controls (0.25-µm decrease in roughness, p < 0.05).
    • Laser-treated discs exhibited significantly reduced P. gingivalis adhesion (p < 0.01) and colonization (p < 0.05).
    • Fibroblast viability and osteoblast differentiation were notably increased on laser-treated surfaces (p < 0.05).

    Conclusions:

    • Er,Cr:YSGG laser treatment effectively modifies titanium surfaces, reducing bacterial adhesion and promoting cellular responses.
    • The observed reduction in P. gingivalis adhesion and enhanced cell viability suggest potential benefits for peri-implantitis management.
    • Laser-assisted therapy warrants further investigation for developing improved clinical guidelines for peri-implantitis treatment.