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Confocal Fluorescence Microscopy01:16

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Related Experiment Video

Updated: Apr 18, 2026

Author Spotlight: Advancing Facial Rejuvenation Therapy with Post-Laser Salicylic Acid Application
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Author Spotlight: Advancing Facial Rejuvenation Therapy with Post-Laser Salicylic Acid Application

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One visit providing desirable smile by laser application.

Reza Fekrazad1, Nasim Chiniforush2

  • 1Laser Research Center in Medical Sciences (LRCMS), AJA University of Medical Sciences- Laser Research Center of Dentistry (LRCD), School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.

Journal of Lasers in Medical Sciences
|January 22, 2015
PubMed
Summary

Erbium, Chromium doped Yttrium Scandium Gallium Garnet (Er-Cr: YSGG) laser effectively treated gingival hyperpigmentation and dental caries in a single session. This laser technology offers a combined approach for simultaneous soft and hard tissue procedures in cosmetic dentistry.

Keywords:
YSGG Lasergingivalaser

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Area of Science:

  • Cosmetic Dentistry
  • Laser Dentistry
  • Periodontology

Background:

  • Gingival hyperpigmentation is a common esthetic concern, particularly in patients with gummy smiles.
  • Various lasers, including CO2, Nd:YAG, Erbium family, and diode lasers, are utilized in oral surgery.
  • This case explores a comprehensive laser-based approach for esthetic dental procedures.

Observation:

  • A 40-year-old male presented with dark pigmentation of the upper gingiva.
  • Diagnosis of dentinal caries was confirmed using Diagnodent.
  • The patient underwent simultaneous gingival depigmentation and caries treatment.

Findings:

  • Erbium, Chromium doped Yttrium Scandium Gallium Garnet (Er-Cr: YSGG) laser was used for both depigmentation and cavity preparation.
  • Post-operative recovery was uneventful, with no pain or need for antibiotics.
  • Complete soft tissue healing was observed within 4 weeks.

Implications:

  • Er-Cr: YSGG laser demonstrates efficacy in combined soft and hard tissue treatments.
  • This laser technology provides a viable option for simultaneous esthetic and restorative dental procedures.
  • The study highlights the potential of lasers in modern cosmetic dentistry for enhanced patient outcomes.