Comparative Evaluation of Clinical Success with Preformed Stainless Steel Crowns and Bioflx Crowns: A Randomized Controlled Trial

Background: Deciduous teeth play a crucial role in mastication, speech, esthetics, and space maintenance. Full-coverage restorations such as stainless steel crowns (SSCs) ensure a hermetic seal but fall short in esthetics, prompting the development of alternatives such as Bioflx crowns. Aim: To compare the clinical success of SSCs and Bioflx crowns in children. Materials and methods: Twenty children (ages 4-8) requiring crowns postpulpectomy for mandibular second primary molars were divided into two groups: group A (stainless steel crown) and group B (Bioflx crown). Child satisfaction was assessed via the children's acceptance scale, and clinician satisfaction was assessed with a 5-point Likert scale. Discomfort and anxiety were evaluated using the emoji and FLACC scales. Clinical success (retention, wear, stain resistance, plaque, and gingival index) was recorded at 3, 6, and 12 months. Results: < 0.05). No significant difference in wear or stain resistance was noted. Conclusion: Bioflx crowns are esthetically pleasing and efficient for pediatric restorations. However, SSCs remain superior in durability and clinical performance. Long-term studies are recommended for Bioflx crowns. Registration: The Clinical Trials Registry of India (CTRI) has prospectively registered the study under the CTRI number CTRI/2024/12/077894. How to cite this article: . Comparative Evaluation of Clinical Success with Preformed Stainless Steel Crowns and Bioflx Crowns: A Randomized Controlled Trial. Int J Clin Pediatr Dent 2026;19(3):368-374.