title: Properties of a new root-end filling material.
abstract: The purposes of this investigation were 2-fold: to study the physical properties and sealing ability of Viscosity Enhanced Root Repair Material (VERRM); and, to compare them with Mineral Trioxide Aggregate (MTA). VERRM has a composition similar to mineral trioxide aggregate, with handling characteristics and consistency similar to commercially available materials such as IRM and Super EBA. The pH, setting times, solubility, radiopacity, dimensional change upon setting, and apical sealing ability of VERRM were evaluated and compared to that of ProRoot MTA (GMTA) and ProRoot MTA (Tooth Colored Formula) (WMTA). The results showed that VERRM had physical properties similar to WMTA. VERRM and WMTA showed significantly greater dye penetration than GMTA (p < 0.05) when used as a root-end filling material. There was no significant difference in depth of dye penetration between VERRM and WMTA. Further development of VERRM is indicated to produce a biocompatible root-end filling material with superior handling characteristics.
authors.affiliation: Department of Restorative Dentistry, Faculty of Dentistry, National University of Singapore, Singapore. rsdchk@nus.edu
authors.forename: Hui Kheng
authors.initials: HK
authors.lastname: Chng
authors.forename: Intekhab
authors.initials: I
authors.lastname: Islam
authors.forename: Adrian U Jin
authors.initials: AU
authors.lastname: Yap
authors.forename: Yen Wah
authors.initials: YW
authors.lastname: Tong
authors.forename: Eng Tiong
authors.initials: ET
authors.lastname: Koh
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D000704:Analysis of Variance; D001641:Bicuspid; D017610:Calcium Compounds / Q000737:chemistry*; D004338:Drug Combinations; D006801:Humans; D010087:Oxides / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry*; D019227:Tooth Apex
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate