title: Comparison of Marginal Microleakage of Glass Ionomer Restorations in Primary Molars Prepared by Chemo-mechanical Caries Removal (CMCR), Erbium: Yttrium Aluminum-Garnet (Er:YAG) Laser and Atraumatic Restorative Technique (ART).
abstract: BACKGROUND
  It is important to emphasize that the aspects of pretreatment techniques, as well as the composition and mechanism of adhesion, may decisively influence the effectiveness of the restorative materials in sealing cavity margins and preventing marginal leakage.
  
  
  OBJECTIVE
  This study assessed the in vitro influence of surface preparation techniques on the microleakage of glass ionomer restorations in primary teeth.
  
  
  METHODS
  The study groups were divided into three different techniques: (1) The chemomechanical caries removal (CMCR) method using the Apacaries gel, (2) the erbium:yttrium aluminum-garnet (Er:YAG) laser method and (3) the atraumatic restorative technique (ART). The teeth restored with a glass ionomer restorative material (Fuji IX GP capsule, GC Corporation, Tokyo, Japan). The dye penetration was measured in micrometers using a polarized light microscope and specific computer software.
  
  
  RESULTS
  The results showed that the mean microleakage level after was lowest with the CMCR method using Apacaries gel and highest with the Er:YAG laser. There was a statistically significant difference regarding the mean microleakage level between the group with the CMCR method using Apacaries gel and the Er:YAG laser.
  
  
  CONCLUSIONS
  Marginal leakage was significantly higher with preparations made using the Er:YAG laser than with the CMCR method using Apacaries gel and spoon excavator (p < 0.05). How to cite this article: Juntavee A, Juntavee N, Peerapattana J, Nualkaew N, Sutthisawat S. Comparison of Marginal Microleakage of Glass Ionomer Restorations in Primary Molars Prepared by Chemomechanical Caries Removal (CMCR), Erbium: Yttrium Aluminum-Garnet (Er:YAG) Laser and Atraumatic Restorative Technique (ART). Int J Clin Pediatr Dent 2013;6(2):75-79.
authors.affiliation: Associate Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Khon Kaen University, Thailand, e-mail: apa.edu@hotmail.com.
authors.forename: Apa
authors.initials: A
authors.lastname: Juntavee
authors.affiliation: Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Khon Kaen University, Thailand.
authors.forename: Niwut
authors.initials: N
authors.lastname: Juntavee
authors.affiliation: Associate Professor, Department of Pharmaceutical Technology Faculty of Pharmaceutical Sciences, Khon Kaen University, Thailand.
authors.forename: Jomjai
authors.initials: J
authors.lastname: Peerapattana
authors.affiliation: Lecturer, Department of Pharmacognosy and Toxicology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Thailand.
authors.forename: Nartsajee
authors.initials: N
authors.lastname: Nualkaew
authors.affiliation: Dental Student, Department of Pediatric Dentistry, Faculty of Dentistry, Khon Kaen University, Thailand.
authors.forename: Sitikorn
authors.initials: S
authors.lastname: Sutthisawat
keywords: Atraumatic restorative technique; Chemomechanical caries removal; Erbium:yttrium aluminum-garnet (Er:YAG) laser; Glass ionomer restorations; Marginal microleakage