title: Apical leakage of resin based root canal sealers with a new computerized fluid filtration meter.
abstract: In this in vitro study, the apical leakage of three root-canal sealers: AH Plus, Diaket, and EndoREZ was evaluated using a new computerized fluid filtration meter. Forty-five extracted human premolar teeth with single root and canal were used. The coronal part of each tooth was removed and the root canals were prepared using GT Rotary files and crown-down technique. The roots were randomly divided into three groups of 15 samples, filled with one of the test materials and gutta-percha cones by the cold lateral condensation technique and were stored at 37 degrees C and 100% humidity for 7 days. One-week later, apical parts of roots of 10 +/- 0.05 mm were attached to computerized fluid filtration meter. Apical leakage quantity was determined as microl/cmH(2)O/min(-1). Statistical analysis indicated that root fillings with Diaket in combination with cold lateral condensation technique showed lower apical leakage than the others (p < 0.05). In addition, this new computerized fluid filtration meter allowed quantitative measurement of leakage easily. As it is a newly developed device to measure apical leakage of endodontic sealers, the reliability of it needed to be tested.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Selçuk University, Konya, Turkey. hasan@orucoglu.net
authors.forename: Hasan
authors.initials: H
authors.lastname: Oruçoğlu
authors.forename: Abdulkadir
authors.initials: A
authors.lastname: Sengun
authors.forename: Nihat
authors.initials: N
authors.lastname: Yilmaz
mesh_terms: D001729:Bismuth / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003199:Computer Systems; D003763:Dental Leakage / Q000145:classification* / Q000473:pathology; D004338:Drug Combinations; D004853:Epoxy Resins / Q000737:chemistry; D004867:Equipment Design; D005374:Filtration / Q000295:instrumentation*; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D011145:Polyvinyls / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation / Q000379:methods; D018915:Root Canal Preparation / Q000295:instrumentation; D019227:Tooth Apex / Q000473:pathology; D015034:Zinc Oxide / Q000737:chemistry
chemical_list: D003188:Composite Resins; D004338:Drug Combinations; C481259:EndoRez; D004853:Epoxy Resins; D011145:Polyvinyls; D019279:Resin Cements; D012387:Root Canal Filling Materials; C534916:epoxy resin-based root canal sealer; C014457:bismuth phosphate, copolymers of vinyl acetate, dichlorophen, propionyl-acetophenone, triethanolamine, vinyl chloride, vinylisobutyl ether, zinc oxide drug combination; D006171:Gutta-Percha; D015034:Zinc Oxide; D001729:Bismuth