Morphological analysis of root canal walls after Er:YAG and Nd:YAG laser irradiation: a preliminary SEM investigation (2005)
- Authors:
- USP affiliated authors: MARQUES, MARCIA MARTINS - FO ; EDUARDO, CARLOS DE PAULA - FO
- Unidade: FO
- Subjects: CANAL RADICULAR; LASER
- Language: Inglês
- Abstract: Purpose: To evaluate the effect of laser irradiation (Nd:YAG and Er:YAG) after conventional endodontic treatment on the cleaness of root canal walls. Materiais and Methods: The roots of 9 extracted single-rooted human teeth were conventionally prepared and randomly divided into 3 groups (n = 3 per group): 1. control, not irradiated; 2. Nd:YAG laser irradiation (100 mJ; 1.5 W; 15 Hz, 124.4 J/cm2); 3. Er:YAG laser irradiation (120 mJ, 15 Hz, 1.8 W, 108.7 J/cm2). The teeth were irradiated 3 times with rotational movements in the apical-coronal direction, at a speed of 2 mm of root canal per second. The teeth were bisected longitudinally and prepared for scanning electron microscopy (SEM). Results: Independent of the experimental group, both clean and smear-layer-covered areas were observed in the same sample and the same root canal third. The samples treated with Er:YAG laser mostly presented clean areas. The Nd:YAG laser apparently removed less smear layer than the Er:YAG laser, and left areas completely covered by debris and smear layer. The control root canal walls predominantly exhibited areas covered by smear layer. Conclusion: Complete cleaning of root canal walls with Nd:YAG and Er:YAG laser radiation with the power set-tings used here was not possible. Although the cleaning capacity of laser could improve conventional endodontic treatment, there is still a need to develop devices which can irradiate root canal walls in their entirety
- Imprenta:
- Source:
- Título do periódico: Journal of Oral Laser Applications
- ISSN: 1473-7809
- Volume/Número/Paginação/Ano: v. 5, n. 2, p. 91-96, 2005
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ABNT
RAMALHO, Karen Müller et al. Morphological analysis of root canal walls after Er:YAG and Nd:YAG laser irradiation: a preliminary SEM investigation. Journal of Oral Laser Applications, v. 5, n. 2, p. 91-96, 2005Tradução . . Acesso em: 28 jun. 2024. -
APA
Ramalho, K. M., Apel, C., Meneguzzo, D. T., Gutknecht, N., Marques, M. M., & Eduardo, C. de P. (2005). Morphological analysis of root canal walls after Er:YAG and Nd:YAG laser irradiation: a preliminary SEM investigation. Journal of Oral Laser Applications, 5( 2), 91-96. -
NLM
Ramalho KM, Apel C, Meneguzzo DT, Gutknecht N, Marques MM, Eduardo C de P. Morphological analysis of root canal walls after Er:YAG and Nd:YAG laser irradiation: a preliminary SEM investigation. Journal of Oral Laser Applications. 2005 ; 5( 2): 91-96.[citado 2024 jun. 28 ] -
Vancouver
Ramalho KM, Apel C, Meneguzzo DT, Gutknecht N, Marques MM, Eduardo C de P. Morphological analysis of root canal walls after Er:YAG and Nd:YAG laser irradiation: a preliminary SEM investigation. Journal of Oral Laser Applications. 2005 ; 5( 2): 91-96.[citado 2024 jun. 28 ] - Interfacial micromorphology of adhesive systems in cavities prepared with Er, Cr:YSGG, Er:YAG laser and bur
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