title: Coronal microleakage of two root-end filling materials using a polymicrobial marker.
abstract: The purpose of this study was to evaluate polymicrobial coronal leakage of mineral trioxide aggregate (MTA) and amalgam. There were 108 single-rooted teeth randomly divided into 3 groups of 32 teeth each and positive and negative control groups of 6 teeth and obturated with gutta percha and either Diaket (3M/ESPE, Seefeld, Germany), AH Plus (Dentsply, De Trey, Konstanz, Germany), or Ketac Endo (3M/ESPE). These groups were further divided into 2 subgroups of 16 teeth in which root ends were resected and obturated with either MTA or zinc-free amalgam. The samples have been incorporated in a dual-chamber leakage model with a polymicrobial marker of five facultative anaerobes on the coronal part. Leakage was observing during a period of 90 days. The least leakage was found in a combination of Diaket and MTA (76.9 +/-14.8 days) followed by AH Plus and MTA (66.1 +/- 18.7), Diaket and amalgam (60.0 +/- 23.1), AH Plus and amalgam (56.9 +/- 22.1), and Ketac Endo and MTA (42.1 +/- 17.8), whereas the greatest leakage was observed in the Ketac Endo and amalgam group (40.0 +/- 17.24). Samples filled with MTA showed significantly better sealing than samples filled with amalgam (p < 0.05).
authors.affiliation: Private practice, Zagreb, Croatia.
authors.forename: Suzana
authors.initials: S
authors.lastname: Ferk Luketić
authors.forename: Ana
authors.initials: A
authors.lastname: Malcić
authors.forename: Silvana
authors.initials: S
authors.lastname: Jukić
authors.forename: Ivica
authors.initials: I
authors.lastname: Anić
authors.forename: Sanja
authors.initials: S
authors.lastname: Segović
authors.forename: Smilja
authors.initials: S
authors.lastname: Kalenić
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D001047:Apicoectomy / Q000379:methods; D015415:Biomarkers; D001729:Bismuth / Q000627:therapeutic use; D017610:Calcium Compounds / Q000737:chemistry*; D003723:Dental Amalgam / Q000737:chemistry*; D003763:Dental Leakage / Q000145:classification* / Q000382:microbiology; D003786:Dental Pulp Cavity / Q000382:microbiology / Q000473:pathology*; D004338:Drug Combinations; D013293:Enterococcus faecalis / Q000502:physiology; D004853:Epoxy Resins / Q000627:therapeutic use; D005899:Glass Ionomer Cements / Q000627:therapeutic use; D006171:Gutta-Percha / Q000627:therapeutic use; D006801:Humans; D007778:Lactobacillus / Q000502:physiology; D008422:Materials Testing; D010087:Oxides / Q000737:chemistry*; D011145:Polyvinyls / Q000627:therapeutic use; D012184:Retrograde Obturation / Q000379:methods*; D012387:Root Canal Filling Materials / Q000737:chemistry* / Q000627:therapeutic use; D012389:Root Canal Obturation / Q000379:methods; D017640:Silicates / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000502:physiology; D034361:Streptococcus mitis / Q000502:physiology; D013295:Streptococcus mutans / Q000502:physiology; D013997:Time Factors; D015034:Zinc Oxide / Q000627:therapeutic use
chemical_list: D017607:Aluminum Compounds; D015415:Biomarkers; D017610:Calcium Compounds; D004338:Drug Combinations; D004853:Epoxy Resins; D005899:Glass Ionomer Cements; C074934:Ketac Endo; D010087:Oxides; D011145:Polyvinyls; D012387:Root Canal Filling Materials; D017640:Silicates; C534916:epoxy resin-based root canal sealer; C086631:mineral trioxide aggregate; C014457:bismuth phosphate, copolymers of vinyl acetate, dichlorophen, propionyl-acetophenone, triethanolamine, vinyl chloride, vinylisobutyl ether, zinc oxide drug combination; D003723:Dental Amalgam; D006171:Gutta-Percha; D015034:Zinc Oxide; D001729:Bismuth