In vitro evaluation of smear layer removal by Er

YAG laser application with five different fiberoptic tip withdrawal techniques

Aldo Brugnera, Danilo Mathias Zanello Guerisoli, Melissa Marchesan, Julio Cesar E. Spano, Jesus Djalma Pecora

Research output: Contribution to journalArticle

Abstract

This study evaluated smear layer removal in apical and middle root thirds using five different fiberoptic tip withdrawal techniques. Thirty human canines were instrumented using 2.5% sodium hypochlorite, with a final irrigation of distilled water, and divided randomly in six different groups. Er:YAG laser was applied in five groups with a 50/28 fiberoptic tip (250 mJ input, 112 mJ output, 10 Hz, 1 mm from apex). Group 6 did not receive laser irradiation. Two pictures of each root canal (middle and apical thirds) were obtained under SEM and analyzed for the amount of smear layer. Results showed no statistical differences (p>0.05) between treatments and significant differences (p<0.01) between radicular thirds. It can be concluded that (1) all withdrawal techniques produced the same results on smear layer removal and (2) the middle third presented less smear layer than the apical third after Er:YAG laser irradiation.

Original languageEnglish (US)
Pages (from-to)269-271
Number of pages3
JournalInternational Congress Series
Volume1248
Issue numberC
DOIs
StatePublished - May 1 2003
Externally publishedYes

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Smear Layer
Solid-State Lasers
Sodium Hypochlorite
Dental Pulp Cavity
Canidae
Lasers
In Vitro Techniques
Water

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

In vitro evaluation of smear layer removal by Er : YAG laser application with five different fiberoptic tip withdrawal techniques. / Brugnera, Aldo; Guerisoli, Danilo Mathias Zanello; Marchesan, Melissa; Spano, Julio Cesar E.; Pecora, Jesus Djalma.

In: International Congress Series, Vol. 1248, No. C, 01.05.2003, p. 269-271.

Research output: Contribution to journalArticle

Brugnera, Aldo ; Guerisoli, Danilo Mathias Zanello ; Marchesan, Melissa ; Spano, Julio Cesar E. ; Pecora, Jesus Djalma. / In vitro evaluation of smear layer removal by Er : YAG laser application with five different fiberoptic tip withdrawal techniques. In: International Congress Series. 2003 ; Vol. 1248, No. C. pp. 269-271.
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