title: A Comparative Evaluation of Microleakage of Glass Ionomer Cement and Chitosan-modified Glass Ionomer Cement: An in vitro Study.
abstract: OBJECTIVE
  To do a comparative study of microleakage of glass ionomer cement (GIC) and chitosan modified glass ionomer cement and evaluate which exhibited lesser microleakage.
  
  
  METHODS
  Sixty freshly extracted sound primary molar teeth were obtained. Two groups of samples were created for the study which comprised of group I (glass ionomer cement-GIC) and group II (Chitosan modified glass ionomer cement). Class V cavities were prepared on the buccal surfaces. All the tooth surfaces except the restoration and a 1 mm zone adjacent to its margins were covered with two coats of varnish. The specimens were then immersed in 2% basic fuschin dye solution for 24 hours. The teeth were sectioned into two halves buccolingually in an occlusoapical direction. Sections were viewed under stereomicroscope and the degree of microleakage was evaluated using specific scoring criteria. For comparative evaluation of microleakage scores between glass ionomer cement and chitosan modified cement, a nonparametric Mann-Whitney statistical analysis was done.
  
  
  RESULTS
  Statistical analysis showed no significant differences between groups I and II with the p-value at >0.05.
  
  
  CONCLUSIONS
  Chitosan modified GIC holds great promise for general dentistry as a future restorative material with microleakage properties similar to or better than GIC. How to cite this article: Abraham D, Thomas AM, Chopra S, Koshy S. A Comparative Evaluation of Microleakage of Glass Ionomer Cement and Chitosan-modified Glass Ionomer Cement: An in vitro Study. Int J Clin Pediatr Dent 2014;7(1):6-10.
authors.affiliation: Senior Resident, Department of Pedodontics and Preventive Dentistry Christian Dental College, Ludhiana, Punjab, India.
authors.forename: Deena
authors.initials: D
authors.lastname: Abraham
authors.affiliation: Professor and Head, Department of Pedodontics and Preventive Dentistry Christian Dental College, Ludhiana, Punjab, India.
authors.forename: Abi Mathew
authors.initials: AM
authors.lastname: Thomas
authors.affiliation: Professor, Department of Pedodontics and Preventive Dentistry Christian Dental College, Ludhiana, Punjab, India.
authors.forename: Saroj
authors.initials: S
authors.lastname: Chopra
authors.affiliation: Associate Professor, Department of Orthodontics and Dentofacial Orthopedics Christian Dental College, Ludhiana, Punjab, India.
authors.forename: Stephen
authors.initials: S
authors.lastname: Koshy
keywords: Chitosan modified GIC; Glass ionomer cement; Microleakage; Thermocycling