Evaluation of hollow fiberoptic tips for the conduction of Er:YAG laser

Paulo Roberto Vieira Alves, Norberto Aranha, Edson Alfredo, Melissa Marchesan, Aldo Brugnera, Manoel D. Sousa-Neto

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Objective: The use of Er:YAG laser operating in the 3 μm range with adjustable power and pulses has become popular for dental and medical practice due to its high photoablative capacity, surgical precision and antimicrobial action. Background data: The existing fiberoptic tips irradiate lasers parallel to the long axes of the tooth limiting its efficiency in the root canal. Methods: We evaluated hollow fiberoptic tips obtained from silicate glass as a means of Er:YAG laser conduction in dental procedures. The fiber tips were molded from capillary tubes with different profiles so that their ends would have cylindric, conical or spherical shapes. The performance of the three fibers as a means of propagation of Er:YAG (λ = 2.94 μm) laser radiation was compared to that of a solid sapphire fiber at 10 Hz and 200 mJ and of 20 Hz and 500 mJ. The profiles of frontal and lateral burning were visualized on thermal paper. Results: Analysis of these profiles demonstrated that the sapphire tip and the hollow fiber of cylindric section did not differ significantly in the profiles of frontal burning, and no lateral burning was detected. The fibers of the conical and spherical sections, although presenting attenuation in the frontal output power, showed a larger burning area in the frontal profile, in addition to producing lateral burning. Conclusions: The results indicate that commercial hollow fiberoptics have advantages such as easy manufacture of the different tip shapes, great adaptability, low cost, and a low loss of transmission.

Original languageEnglish (US)
Pages (from-to)410-415
Number of pages6
JournalPhotomedicine and Laser Surgery
Volume23
Issue number4
DOIs
StatePublished - Aug 1 2005

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Solid-State Lasers
Tooth
Aluminum Oxide
Fibers
Lasers
Silicates
Sapphire
Dental Pulp Cavity
Glass
Hot Temperature
Capillary tubes
Radiation
Costs and Cost Analysis
Canals
Laser radiation
Costs

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

Cite this

Vieira Alves, P. R., Aranha, N., Alfredo, E., Marchesan, M., Brugnera, A., & Sousa-Neto, M. D. (2005). Evaluation of hollow fiberoptic tips for the conduction of Er:YAG laser. Photomedicine and Laser Surgery, 23(4), 410-415. https://doi.org/10.1089/pho.2005.23.410

Evaluation of hollow fiberoptic tips for the conduction of Er:YAG laser. / Vieira Alves, Paulo Roberto; Aranha, Norberto; Alfredo, Edson; Marchesan, Melissa; Brugnera, Aldo; Sousa-Neto, Manoel D.

In: Photomedicine and Laser Surgery, Vol. 23, No. 4, 01.08.2005, p. 410-415.

Research output: Contribution to journalArticle

Vieira Alves, PR, Aranha, N, Alfredo, E, Marchesan, M, Brugnera, A & Sousa-Neto, MD 2005, 'Evaluation of hollow fiberoptic tips for the conduction of Er:YAG laser', Photomedicine and Laser Surgery, vol. 23, no. 4, pp. 410-415. https://doi.org/10.1089/pho.2005.23.410
Vieira Alves, Paulo Roberto ; Aranha, Norberto ; Alfredo, Edson ; Marchesan, Melissa ; Brugnera, Aldo ; Sousa-Neto, Manoel D. / Evaluation of hollow fiberoptic tips for the conduction of Er:YAG laser. In: Photomedicine and Laser Surgery. 2005 ; Vol. 23, No. 4. pp. 410-415.
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