Evaluation of Er:YAG, CO2 and Nd:YAG lasers on apical dentine permeability after apicoectomies

Fabiana Careli De Castro, Ricardo Gariba Silva, Melissa Marchesan, Fátima Zanin, Aldo Brugnera, Jesus D. Pécora

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Apicoectomy is a surgical procedure that consists of radicular apex resection, eliminating periapical lesion. This study evaluated the effect of CO2 and Nd:YAG lasers on root dentine permeability after apicoectomy with Er:YAG laser. Forty-four single-rooted teeth, obtained from the Endodontic Laboratory stock from the Faculty of Dentistry of Ribeirão Preto, University of São Paulo, were used. The teeth were instrumented with the step-back technique, irrigated with 1.0% sodium hypochlorite and sealed with Sealer 26 (Dentsply, Brazil) and lateral condensation. The samples were divided into four groups of 11 teeth each that had the root sectioned 2 mm from the apex: G1 - roots were sectioned with a 4138 diamond bur with cooling; G2 - roots were sectioned with pulsed Er:YAG laser at the following parameters: 15 Hz and 250 mJ; G3 - roots were sectioned with pulsed Er:YAG laser and Nd:YAG laser (10 Hz, 100 mJ, and 1 W) was applied on the sectioned surface; 04 - roots were sectioned with pulsed Er:YAG laser and CO2 laser (5 W, 10 seconds ON and 20 seconds OFF) was applied to the sectioned surface. The teeth were then impermeabilized with cyanoacrylate and placed in 0.5% methylene blue for 7 days. The proximal surface of the samples was removed for exposure of the sealed root canal and dye penetration was measured by means of microscopic evaluation. The results showed a statistically significant difference at the level of 1%. We conclude that all treatments presented microleakage and can placed in increasing order: Er:YAG (G2), Bur (G1), Er:YAG + CO2 (G4) and Er:YAG + Nd:YAG (G3); Er:YAG laser presented the lowest microleakage values, showing its viability for clinical use in apicoectomies.

Original languageEnglish (US)
Pages (from-to)104-108
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5313
DOIs
StatePublished - Oct 27 2004
Externally publishedYes
EventProgress in Biomedical Optics and Imaging - Lasers in Dentistry X - San Jose, CA, United States
Duration: Jan 25 2004Jan 25 2004

Fingerprint

Er:YAG
Nd:YAG Laser
yttrium-aluminum garnet
Permeability
YAG lasers
permeability
Roots
teeth
Lasers
evaluation
Evaluation
Laser
pulsed lasers
Apex
apexes
dentistry
sealers
canals
Cyanoacrylates
Dentistry

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

Evaluation of Er:YAG, CO2 and Nd:YAG lasers on apical dentine permeability after apicoectomies. / De Castro, Fabiana Careli; Silva, Ricardo Gariba; Marchesan, Melissa; Zanin, Fátima; Brugnera, Aldo; Pécora, Jesus D.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5313, 27.10.2004, p. 104-108.

Research output: Contribution to journalConference article

De Castro, Fabiana Careli ; Silva, Ricardo Gariba ; Marchesan, Melissa ; Zanin, Fátima ; Brugnera, Aldo ; Pécora, Jesus D. / Evaluation of Er:YAG, CO2 and Nd:YAG lasers on apical dentine permeability after apicoectomies. In: Proceedings of SPIE - The International Society for Optical Engineering. 2004 ; Vol. 5313. pp. 104-108.
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title = "Evaluation of Er:YAG, CO2 and Nd:YAG lasers on apical dentine permeability after apicoectomies",
abstract = "Apicoectomy is a surgical procedure that consists of radicular apex resection, eliminating periapical lesion. This study evaluated the effect of CO2 and Nd:YAG lasers on root dentine permeability after apicoectomy with Er:YAG laser. Forty-four single-rooted teeth, obtained from the Endodontic Laboratory stock from the Faculty of Dentistry of Ribeir{\~a}o Preto, University of S{\~a}o Paulo, were used. The teeth were instrumented with the step-back technique, irrigated with 1.0{\%} sodium hypochlorite and sealed with Sealer 26 (Dentsply, Brazil) and lateral condensation. The samples were divided into four groups of 11 teeth each that had the root sectioned 2 mm from the apex: G1 - roots were sectioned with a 4138 diamond bur with cooling; G2 - roots were sectioned with pulsed Er:YAG laser at the following parameters: 15 Hz and 250 mJ; G3 - roots were sectioned with pulsed Er:YAG laser and Nd:YAG laser (10 Hz, 100 mJ, and 1 W) was applied on the sectioned surface; 04 - roots were sectioned with pulsed Er:YAG laser and CO2 laser (5 W, 10 seconds ON and 20 seconds OFF) was applied to the sectioned surface. The teeth were then impermeabilized with cyanoacrylate and placed in 0.5{\%} methylene blue for 7 days. The proximal surface of the samples was removed for exposure of the sealed root canal and dye penetration was measured by means of microscopic evaluation. The results showed a statistically significant difference at the level of 1{\%}. We conclude that all treatments presented microleakage and can placed in increasing order: Er:YAG (G2), Bur (G1), Er:YAG + CO2 (G4) and Er:YAG + Nd:YAG (G3); Er:YAG laser presented the lowest microleakage values, showing its viability for clinical use in apicoectomies.",
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AU - De Castro, Fabiana Careli

AU - Silva, Ricardo Gariba

AU - Marchesan, Melissa

AU - Zanin, Fátima

AU - Brugnera, Aldo

AU - Pécora, Jesus D.

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