Comparative Evaluation of Bioflx Crowns, Preformed Zirconia Crowns, and CAD/CAM Crowns-Resistant to Fracture: An In Vitro Study.

The most prevalent childhood illness, early childhood caries (ECC), is frequently accompanied by severe comorbidities that have an impact on children's quality of life as well as that of their families, the community, and the medical system. Carious primary teeth have been widely treated with a variety of materials, with varied degrees of effectiveness. These materials include amalgam, glass ionomer, stainless-steel crowns (SSCs), and, more recently, zirconia and Bioflx crowns. SSC has been the gold standard for restoring carious primary molars for almost 70 years because of its affordability, longevity, and very easy process. Parents are frequently unsatisfied with SSCs' esthetic qualities, despite the technology's benefits. In this study, we assessed the link between dimensional variation and the fracture resistance of Bioflx crowns and commercially available prefabricated primary zirconia crowns. The crowns were randomly divided into three groups. A universal testing machine was used to perform fracture tests on each sample. Computer-aided design/computer-aided manufacturing (CAD/CAM) zirconia posterior crowns had the greatest mean load (1413.80 ± 7.085 N), followed by preformed zirconia crowns (391.20 ± 3.564 N) and Bioflx crowns with the least mean load (104.80 ± 2.280 N). In general, the examined zirconia and Bioflx crowns exhibited the best mechanical qualities to endure the stresses of mastication.

How to cite this article: Gupta N, Ghambir N, Singh D, et al. Comparative Evaluation of Bioflx Crowns, Preformed Zirconia Crowns, and CAD/CAM Crowns-Resistant to Fracture: An In Vitro Study. Int J Clin Pediatr Dent 2025;18(6):632-636.