Randomized clinical evaluation and parental satisfaction between zirconia crowns and stainless-steel crowns in primary molars: A 24 month follow up

Abstract

Introduction and aimThe aim of this study was to compare the clinical success and parental satisfaction of zirconia crowns (Kids-e-crowns™) with preformed stainless-steel crowns (3M™ ESPE) in the restoration of primary first and second molars. Materials and methodsThis randomized controlled clinical trial was designed as a split-mouth study. 100 teeth in 47 children aged between 3 and 7 years were selected and randomly assigned in two groups, each group containing 50 teeth. Restorations were evaluated at 24 h, 3, 6, 12 and 24 months recall appointments examining the following criteria-restoration failure, marginal integrity, gingival health, plaque accumulation, occlusion, opposing tooth wear and parental satisfaction. ResultsThe performance of both the groups was comparable in terms of restoration failure, marginal integrity, gingival health, occlusion, opposing tooth wear. However, plaque accumulation was significantly higher in stainless-steel crowns than zirconia crowns. ConclusionTwo year follow-up indicated that preformed zirconia crowns are an excellent aesthetic alternative to stainless-steel crowns as full coronal restorations in the paediatric population.