Finite element analysis of immature teeth filled with MTA, Biodentine and Bioaggregate

Eram, Afiya and Zuber, Mohammad and Keni, Laxmikant G (2020) Finite element analysis of immature teeth filled with MTA, Biodentine and Bioaggregate. Computer Methods and Programs in Biomedicine, 190. pp. 1-6. ISSN 0169-2607

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Background and objective: Finite element based simulation has emerged as a powerful tool to analyse the tooth strength and its fracture characteristics. The aim of this study is to compare and evaluate the fracture resistance of immature teeth reinforcement with MTA, Biodentine and Bioaggregate as an apical plug and backfill material using Finite Element Method. Methods: A 3D finite element analysis model was generated using a simulated immature maxillary cen- tral incisor. Seven different models were developed representing (Model 1): control group having an im- mature tooth model without any reinforcement material; (Model 2): Mineral trioxide aggregate (MTA) as apical plug 4 mm; (Model 3): Biodentine as apical plug 4 mm; (Model 4): Bioaggregate as apical plug 4 mm; (Model 5): MTA filled in the entire root canal 8.5 mm; (Model 6): Biodentine filled in the entire root canal 8.5 mm; (Model 7): Bioaggregate filled in the entire root canal 8.5 mm. A force of 100 N was applied at an angle of 130 °to the palatal surface of the tooth. Stress distribution at cemento–enamel junction was measured using the Von Mises stress criteria. Results: It was found that the 4 mm apical plug using MTA showed higher fracture resistance when compared to 8.5 mm backfill using MTA. When MTA was replaced as backfill material by Biodentine and Bioaggregate, the von mises stress increased by 64% and 94% respectively. Conclusions: It is not desirable to restore the entire root canal of an immature teeth using same mate- rial due to higher stress concentration at the cervical region. Considering the shorter setting time and improved handling characteristics, Biodentine can be preferred over the time–tested MTA as an apical plug.

Item Type: Article
Uncontrolled Keywords: Finite Element Analysis (FEM); Mineral trioxide aggregate (MTA); biodentine; Bioaggregate; apical plug; backfill.
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Dentistry > MCODS Manipal > Conservative Dentistry and Endontics
Depositing User: KMC Library
Date Deposited: 14 Sep 2020 11:19
Last Modified: 14 Sep 2020 11:19

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