Radiopacity of tricalcium silicate-white portland cement with bismuth oxide and zirconium oxide additions for use as potential materials for an endodontic sealer

• Main Authors: Nurdin, Denny, Wijaya, Marcelina, Satifil, Irmaleny, Primathena, Indra, Cahyanto, Arief
• Format: Article
• Published: University of Chemistry and Technology, Faculty of Environmental Technology 2023
• Subjects: RK Dentistry
• Online Access: http://eprints.um.edu.my/39076/

Radiopacity is one of the properties needed for intraoral dental materials. The root canal sealer should have sufficient radiopacity to provide a clear distinction between the material and the surrounding anatomical structure, which can only be performed by radiographic examination. Some radiopacifier materials that can be used are Bismuth Oxide (Bi2O3) and Zirconium Oxide (ZrO2). Portland cement has the same characteristics as MTA; however, the lack of presence of bismuth oxide in Portland cement causes low radiopacity. This study investigates the radiopacity value of Tricalcium Silicate White Portland Cement (TS-WPC) by adding Bi2O3 and ZrO2 with concentrations of 10, 15, 20, and 25 % respectively. A mixture of TS-WPC with Bi2O3 and TS-WPC with ZrO2 was made using a simple solution method. After that, the radiopacity of all the samples and the control was tested. The results showed statistically significant differences in the radiopacity value between the groups (p < 0.05), and the post hoc test revealed that the highest radiopacity value was found in the TS-WPC Bi2O3 group of 25 %. In conclusion, adding a Bi2O3 and ZrO2 radiopacifier at a concentration of 10, 15, 20, and 25 % can increase the radiopacity value of TS-WPC. TS-WPC with the addition of Bi2O3 has better radiopacity compared to ZrO2.