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Micromorphology of Root Canal Walls After Laser Activated Irrigation.
Anton Y Otero, C I; Marger, L; Feilzer, A; Krejci, I; Abdelaziz, M.
Afiliación
  • Anton Y Otero CI; Division of Cariology and Endodontology, CUMD - University Clinics of Dental Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
  • Marger L; Division of Cariology and Endodontology, CUMD - University Clinics of Dental Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
  • Feilzer A; Department of Dental Material Sciences, Academic Center for Dentistry Amsterdam (ACTA) - Gustav Mahlerlaan 3004, 1081 LA Amsterdam.
  • Krejci I; Division of Cariology and Endodontology, CUMD - University Clinics of Dental Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
  • Abdelaziz M; Division of Cariology and Endodontology, CUMD - University Clinics of Dental Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
Eur J Prosthodont Restor Dent ; 32(1): 109-119, 2024 Feb 29.
Article en En | MEDLINE | ID: mdl-37988616
This study aims to investigate the effects of laser-activated irrigation on root canal dentin using different laser wavelengths. Sixty-six roots were prepared and split longitudinally. First, lasers with different power settings were tested on 34 samples, pre-etched with phosphoric acid, or remaining with a smear-layer to determine the test parameters. Selected parameters were then applied on thirty roots (9 groups) covered with smear layer: 1. Smear-layer removed; 2. Smear-layer untouched; 3. Conventional needle irrigation with NaOCl and EDTA; 4. ER:YAG laser; 5. 9.3 µm CO2 laser; 6-9. Diode lasers. All lasers were applied in ultra-pure water as an irrigant. Root halves were examined by scanning electron microscope to analyze the intracanal dentin micromorphology on 9 consequent photos per specimen @ a magnification of 1000X. The results showed that conventional needle irrigation was effective in removing the smear-layer from coronal and middle root parts, while laser-activated irrigation had two main mechanisms: cleaning and opening of the dentinal tubules by removing the smear layer (Er:YAG laser) and melting of dentin (CO2 and diode lasers) in all root parts. The study concluded that laseractivated irrigation with different wavelengths impacted the smear layer and root canal dentin differently through pure physical/mechanical effects.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Capa de Barro Dentinario / Láseres de Estado Sólido Límite: Humans Idioma: En Revista: Eur J Prosthodont Restor Dent Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Capa de Barro Dentinario / Láseres de Estado Sólido Límite: Humans Idioma: En Revista: Eur J Prosthodont Restor Dent Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido