PMID- 25198390
OWN - NLM
STAT- MEDLINE
DCOM- 20160918
LR  - 20211021
IS  - 1557-8550 (Electronic)
IS  - 1549-5418 (Print)
IS  - 1549-5418 (Linking)
VI  - 32
IP  - 10
DP  - 2014 Oct
TI  - Efficacy of Er,Cr:YSGG laser in removing smear layer and debris with two 
      different output powers.
PG  - 527-32
LID - 10.1089/pho.2014.3766 [doi]
AB  - OBJECTIVE: The purpose of this study was to evaluate the effectiveness of the 
      erbium, chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser in removing 
      debris and the smear layer using two different output powers on the apical, 
      middle, and coronal segments of root canal walls. BACKGROUND DATA: Previous 
      literature has failed to evaluate the exclusive effect of Er,Cr:YSGG laser on the 
      quality of smear layer and debris removal in all three segments of the root canal 
      space. METHODS: Sixty extracted teeth were included in the study. After 
      instrumentation, samples were divided into three experimental groups and one 
      positive control group with no further treatment. In group 1, a final irrigation 
      was performed using ethylenediaminetetraacetic acid (EDTA) and sodium 
      hypochlorite (NaOCl), sequentially. In group 2, the samples were treated with a 
      2.78 mum Er,Cr:YSGG laser with an output power of 1.5 W. The same laser was used 
      in group 3, but with an output power of 2.5 W. Scanning electron microscope (SEM) 
      images from the coronal, middle, and apical thirds of the roots were prepared and 
      evaluated for both smear layer and debris removal by three blinded observers. 
      RESULTS: The results showed no differences between groups 1 and 2 regarding the 
      quality of smear layer removal in all areas. However, the 2.5 W laser failed to 
      remove the smear layer effectively. Regarding debris removal, the EDTA and NaOCl 
      irrigation showed significantly better outcomes (adjusted p<0.05) in all areas. 
      CONCLUSIONS: This study raises questions about the overall cleaning abilities of 
      Er,Cr:YSGG lasers.
FAU - Bolhari, Behnam
AU  - Bolhari B
AD  - 1 Department of Endodontics, School of Dentistry, Tehran University of Medical 
      Sciences , Tehran, Iran .
FAU - Ehsani, Sara
AU  - Ehsani S
FAU - Etemadi, Ardavan
AU  - Etemadi A
FAU - Shafaq, Mohammad
AU  - Shafaq M
FAU - Nosrat, Ali
AU  - Nosrat A
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140908
PL  - United States
TA  - Photomed Laser Surg
JT  - Photomedicine and laser surgery
JID - 101222340
RN  - 0 (Root Canal Irrigants)
RN  - 0R0008Q3JB (Chromium)
RN  - 58784XQC3Y (Yttrium)
RN  - 77B218D3YE (Erbium)
RN  - 9G34HU7RV0 (Edetic Acid)
RN  - CH46OC8YV4 (Gallium)
RN  - YUJ4U1EW7R (Scandium)
SB  - IM
MH  - Chromium
MH  - Dental Pulp Cavity/*radiation effects
MH  - Edetic Acid/pharmacology
MH  - Erbium
MH  - Gallium
MH  - Humans
MH  - In Vitro Techniques
MH  - *Lasers, Solid-State
MH  - Microscopy, Electron, Scanning
MH  - Reproducibility of Results
MH  - Root Canal Irrigants/pharmacology
MH  - Root Canal Preparation
MH  - Scandium
MH  - Smear Layer/*prevention & control
MH  - Yttrium
PMC - PMC4195347
EDAT- 2014/09/10 06:00
MHDA- 2016/09/19 06:00
PMCR- 2015/10/01
CRDT- 2014/09/09 06:00
PHST- 2014/09/09 06:00 [entrez]
PHST- 2014/09/10 06:00 [pubmed]
PHST- 2016/09/19 06:00 [medline]
PHST- 2015/10/01 00:00 [pmc-release]
AID - 10.1089/pho.2014.3766 [pii]
AID - 10.1089/pho.2014.3766 [doi]
PST - ppublish
SO  - Photomed Laser Surg. 2014 Oct;32(10):527-32. doi: 10.1089/pho.2014.3766. Epub 
      2014 Sep 8.