title: Assembling of fluid filtration system for quantitative evaluation of microleakage in dental materials.
abstract: BACKGROUND
  There are several methods for evaluating microleakage in dentistry, for example dye or bacterial leakage, electro-chemical methods, radioisotope labeling and fluid filtration. The purpose of this study was to assemble the fluid filtration system for quantitative evaluation of microleakage in dental materials.
  
  
  METHODS
  The roots were connected to a tube filled with an underwater pressure supply. A bubble was introduced into the water to measure endodontic leakage. A digital camera and professional software were utilized to record and measure the bubble displacement.
  
  
  RESULTS
  Our system was constructed successfully and functioned correctly.
  
  
  CONCLUSIONS
  In this pilot study we found this system efficient for the evaluation of microleakage of dental materials.
authors.affiliation: Department of Endodontics, Dental School, Dental Research Center, Mashad University of Medical Sciences, Mashad, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Javidi
authors.forename: Neda
authors.initials: N
authors.lastname: Naghavi
authors.forename: Ehsan
authors.initials: E
authors.lastname: Roohani
keywords: Bacterial Leakage; Dye Leakage; Fluid Filtration; New Device