title: Comparison of the radiopacities of different root-end filling and repair materials.
abstract: This study evaluated the radiopacity of 3 repair materials, Biodentine, MM-MTA, and MTA Angelus. Standardized cylindrical rings were prepared. Samples of Biodentine MM-MTA and MTA Angelus were prepared (n = 10 in each group), filled into the rings, and preserved at 37°C until setting. A 1 mm thick dentin slice was used as control. All set specimens were removed and radiographed along with the dentine slice and a graduated aluminium step wedge. Digital images were transferred to the computer using a software. The radiographic densities of the specimens were determined, and the values were converted into millimetres of aluminium (mm Al). One-way ANOVA was used for intergroup comparison, whereas Tukey HSD test was used for detecting the group with the difference. The mean radiopacities of Biodentine, MTA Angelus, and MM-MTA were 2.8 ± 0.48, 4.72 ± 0.45, and 5.18 ± 0.51 mm Al, respectively. The radiopacity of Biodentine was significantly lower compared to other materials (P = 0.001), whereas no significant difference was noted between MTA Angelus and MM-MTA (P = 0.109). All materials had significantly higher radiopacities compared to dentine. The relatively lower radiopacity of Biodentine can be improved to achieve more reliable results in procedures such as retrograde fillings.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Yeditepe University, Bagdat Caddesi 238, Göztepe, 34728 Istanbul, Turkey.
authors.forename: Jale
authors.initials: J
authors.lastname: Tanalp
authors.forename: Meriç
authors.initials: M
authors.lastname: Karapınar-Kazandağ
authors.forename: Semanur
authors.initials: S
authors.lastname: Dölekoğlu
authors.forename: Mehmet Baybora
authors.initials: MB
authors.lastname: Kayahan
mesh_terms: D017607:Aluminum Compounds; D001729:Bismuth; D017610:Calcium Compounds; D003287:Contrast Media; D003738:Dental Cements; D003804:Dentin / Q000000981:diagnostic imaging; D004338:Drug Combinations; D006801:Humans; D008422:Materials Testing; D010087:Oxides; D011859:Radiography; D012387:Root Canal Filling Materials; D017640:Silicates
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D003287:Contrast Media; D003738:Dental Cements; D004338:Drug Combinations; C475480:MTA-Angelus; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; C506393:tricalcium silicate; D001729:Bismuth