In vitro evaluation of external root temperature changes during Er:YAG laser application with five different fiberoptic tip withdrawal techniques

Jesus Djalma Pécora, Aldo Brugnera, Melissa Marchesan, Danilo Mathias Zanello Guerisoli, Eduardo Luiz Barbin, Fábio Heredia Seixas

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

This study evaluated in vitro the external temperature increase at the three root thirds using five different fiberoptic tip withdrawal techniques in 50 human canines. Er:YAG laser was applied with a 50/28 fiberoptic tip with 250 mJ input, 112 mJ output, 10 Hz, 1 mm from the apical foramen: group 1 : each third was irradiated starting at the apex for 1 s on each wall, with the irradiation turned off between thirds; group 2: apical third irradiated without movement for 2 s and tip withdrawn with continuous radiation up to the cervical third; group 3: tip activated at the apex and removed to the canal entrance in a straight line; group 4: tip activated at the apex and removed to the canal entrance with circular movements touching all walls; group 5: tip activated at the apex and removed to the canal entrance with clockwise circular movements for 6 s and then reinserting and removing with counter-clockwise circular movements for another 6 s, touching all walls. Group 1 had significantly lower external temperature (p<0.0l).The middle third had the greatest temperature increase (p<0.01). We conclude that the withdrawal techniques caused an increase in external root temperature that would not damage adjacent tissues.

Original languageEnglish (US)
Pages (from-to)186-187
Number of pages2
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4950
DOIs
StatePublished - Sep 29 2003
EventLasers in Dentistry IX - San Jose, CA, United States
Duration: Jan 26 2003Jan 27 2003

Fingerprint

Er:YAG
Laser applications
laser applications
Fiber Optics
YAG lasers
Canals
Apex
Roots
Laser
canals
evaluation
apexes
Evaluation
entrances
Temperature
temperature
Anticlockwise
Clockwise
Irradiation
Tissue

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

In vitro evaluation of external root temperature changes during Er:YAG laser application with five different fiberoptic tip withdrawal techniques. / Pécora, Jesus Djalma; Brugnera, Aldo; Marchesan, Melissa; Guerisoli, Danilo Mathias Zanello; Barbin, Eduardo Luiz; Seixas, Fábio Heredia.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4950, 29.09.2003, p. 186-187.

Research output: Contribution to journalConference article

Pécora, Jesus Djalma ; Brugnera, Aldo ; Marchesan, Melissa ; Guerisoli, Danilo Mathias Zanello ; Barbin, Eduardo Luiz ; Seixas, Fábio Heredia. / In vitro evaluation of external root temperature changes during Er:YAG laser application with five different fiberoptic tip withdrawal techniques. In: Proceedings of SPIE - The International Society for Optical Engineering. 2003 ; Vol. 4950. pp. 186-187.
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