title: ProRoot MTA, MTA-Angelus and IRM used to repair large furcation perforations: sealability study.
abstract: The ability of two mineral trioxide aggregate (MTA) compounds and Intermediate Restorative Material (IRM) to seal large furcation perforations were evaluated using a dye-extraction leakage method. The furcation perforations were repaired with and without the use of internal matrix before placement of repair material. Eighty extracted human mandibular first molars were divided into positive (n = 10), negative (n = 10), and three experimental groups (n = 20) according to the repair material used. Each experimental group was divided into two subgroups (n = 10) according to whether internal matrix was used or not. Dye leakage was tested from an orthograde direction, and dye extraction was performed using full concentration nitric acid. Dye absorbance was measured at 550 nm using spectrophotometer. ProRoot MTA (Maillfer, Dentsply, Switzerland) with and without internal matrix and MTA-Angelus (Angelus, Londrina, PR, Brazil) with internal matrix showed the least dye absorbance. IRM (Caulk, Dentsply, Milford, DE) without internal matrix showed the highest dye absorbance. IRM with internal matrix and MTA-Angelus without internal matrix had insignificant difference and came at intermediate level between the other groups.
authors.affiliation: Faculty of Dentistry, Ain Shams University, Cairo, Egypt. ahmedhashem1968@yahoo.com
authors.forename: Ahmed Abdel Rahman
authors.initials: AA
authors.lastname: Hashem
authors.forename: Ehab E
authors.initials: EE
authors.lastname: Hassanien
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry* / Q000627:therapeutic use; D000704:Analysis of Variance; D001729:Bismuth / Q000737:chemistry* / Q000627:therapeutic use; D017610:Calcium Compounds / Q000737:chemistry* / Q000627:therapeutic use; D003738:Dental Cements / Q000737:chemistry* / Q000627:therapeutic use; D003763:Dental Leakage / Q000517:prevention & control*; D004338:Drug Combinations; D006801:Humans; D008768:Methylmethacrylates / Q000737:chemistry* / Q000627:therapeutic use; D010087:Oxides / Q000737:chemistry* / Q000627:therapeutic use; D012387:Root Canal Filling Materials / Q000737:chemistry* / Q000627:therapeutic use; D017640:Silicates / Q000737:chemistry* / Q000627:therapeutic use; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry* / Q000627:therapeutic use
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D003738:Dental Cements; D004338:Drug Combinations; C475480:MTA-Angelus; D008768:Methylmethacrylates; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; D015035:Zinc Oxide-Eugenol Cement; C086631:mineral trioxide aggregate; C031667:IRM cement; D001729:Bismuth