In vitro analysis of durability of S-PRG filler-containing composite crowns for primary molar restoration

Nakase, Yutaro; Jalkh, Ernesto B. Benalcázar; Atria, P; Witek, Lukasz; Bonfante, Estevam Augusto; Li, Hefei; Sakai, Taiji; Okawa, Rena; Nakano, Kazuhiko; Imazato, Satoshi

doi:10.1016/j.dental.2023.04.006

Cited by 4 publications

(1 citation statement)

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“…Previous studies have compared the stress generation in different crowns and restorative material through a finite element model. 28,29 Prabhakar et al 18 evaluated and compared an FEA stress analysis of primary teeth restored with zirconia and stainless steel crowns, and the authors concluded there was a lesser stress generation in zirconia crowns than stainless steel crowns, which suggests that the ability of the tooth restored with a zirconia crown to withstand masticatory forces is better. 2,3,30 These results are in accordance with the results of the present study, as the stress generation values in zirconia were comparable.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of stress generation in primary teeth restored with zirconia and BioFlx crowns: A finite element analysis

Deolikar,

Rathi,

Mehta

2024

Dent. J.

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Background: Maintaining the functional integrity of primary teeth is important, as these teeth are integral in vital functions such as mastication, speech development, and space maintenance for permanent teeth; hence, premature loss of primary teeth can affect a child’s quality of life. Various restorative materials are available to restore the function of grossly decayed teeth. Stainless steel crowns and zirconia crowns are widely used in pediatric dentistry; however, there are certain disadvantages associated with these materials. Recently introduced BioFlx crowns provide acceptable esthetics with a conservative approach. Nevertheless, there is a lack of evidence regarding their strength and clinical acceptability. Finite element analysis measures the physical response of teeth and assesses the stress generation, which is important to estimate the integrity of the restorations and crowns. Purpose: The aim of this in vitro study was to evaluate and compare stress generation in primary teeth restored with zirconia and BioFlx crowns using finite element analysis. Methods: Models of extracted teeth restored with zirconia and BioFlx crowns were used for the study. The finite element analysis of these models was carried out through Analysis of Systems (ANSYS) software. The models were subjected to a simulated occlusal loading force of 245 N. Results: Von Mises stress generated in BioFlx crowns along with underlying dentin was much less compared to that which was generated in zirconia crowns. Conclusion: Restoring the functional integrity of carious teeth is essential. BioFlx crowns can be used as full coverage restorations and can be a suitable alternative to zirconia crowns and traditional stainless steel crowns.

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