J Korean Acad Pediatr Dent.  2023 May;50(2):168-178. 10.5933/JKAPD.2023.50.2.168.

Effectiveness of Sodium Iodide Root Canal Filling Pastes in Primary Teeth

Affiliations
  • 1Department of Pediatric Dentistry, College of Dentistry, Dankook University, Cheonan, Republic of Korea
  • 2Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
  • 3Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
  • 4Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
  • 5UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea

Abstract


Objectives
This study aimed to compare the physical properties and antibacterial effectiveness of iodoform based root filling pastes, Vitapex® and Metapex®, with sodium iodide root filling paste (NaI paste) for primary teeth. Materials and Methods: The physical properties (flowability, film thickness, radiopacity) of the pastes were evaluated according to ISO 6876:2012. The antibacterial activity against Enterococcus faecalis strain (ATCC 6538) was evaluated using a direct contact test. Results: There was no significant statistical difference (p > 0.05) observed in the flow and film thickness of NaI paste when compared to the currently available root canal filling materials. The average flow capacities for Vitapex®, Metapex®, and NaI paste were 15.40 mm, 21.25 mm, and 20.01 mm, respectively. The average film thickness for Vitapex®, Metapex®, and NaI paste were 33.3 μl, 22.6 μl, and 25.0 μl, respectively. However, NaI paste showed lower radiopacity than the existing materials, and this difference was statistically significant (p < 0.05) NaI paste demonstrated higher antimicrobial activity than the available materials, and this difference was also statistically significant (p < 0.05). Conclusion: Compared to the existing commercialized root canal filling materials, NaI paste exhibited similar performance in terms of flow and film thickness, and superior antimicrobial activity against E. faecalis . Hence, NaI paste could be a promising root filling material for primary teeth and may be a potential alternative to existing materials.

Keyword

Iodoform; Sodium Iodide; Root canal filling paste; Primary teeth; Antibacterial activity; Physical properties
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