title: An evaluation of microleakage of various glass ionomer based restorative materials in deciduous and permanent teeth: An in vitro study.
abstract: OBJECTIVE
  To evaluate the microleakage of recently available glass ionomer based restorative materials (GC Fuji IX GP, GC Fuji VII, and Dyract) and compare their microleakage with the previously existing glass ionomer restorative materials (GC Fuji II LC) in primary and permanent teeth.
  
  
  METHODS
  One hundred and fifty (75 + 75) non-carious deciduous and permanent teeth were restored with glass ionomer based restorative materials after making class I cavities. Samples were subjected to thermocycling after storing in distilled water for 24 h. Two coats of nail polish were applied 1 mm short of restorative margins and samples sectioned buccolingually after storing in methylene blue dye for 24 h. Microleakage was assessed using stereomicroscope.
  
  
  RESULTS
  Significant differences (P < 0.05) were found when inter group comparisons were done. Except when GC Fuji VII (Group III) was compared with GC Fuji II LC (Group II) and Dyract (Group IV), non-significant differences (P > 0.05) were observed. It was found that there was no statistically significant difference when the means of microleakage of primary teeth were compared with those of permanent teeth.
  
  
  CONCLUSIONS
  GC Fuji IX GP showed maximum microleakage and GC Fuji VII showed least microleakage.
authors: Department of Pedodontics and Preventive Dentistry, SGRD Dental College, Amritsar, India.
authors: Teena
authors: T
authors: Singla
authors: I K
authors: IK
authors: Pandit
authors: Nikhil
authors: N
authors: Srivastava
authors: Neeraj
authors: N
authors: Gugnani
authors: Monika
authors: M
authors: Gupta
keywords: Glass ionomer based restorative materials; Microleakage; Stereomicroscope
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