Rona Leith1, Anne C O'Connell. 1. Department of Public and Child Dental Health, Dublin Dental School and Hospital, Dublin, Ireland. rona.leith@dental.tcd.ie
Abstract
PURPOSE: To evaluate the success of posterior NuSmile(®) and Kinder™Krown and to determine the level of parental satisfaction with this treatment option. METHODS: Forty-eight crowns were placed in 18 children with a mean age of 5 years. A split mouth design was used. Each participant randomly received each crown type on 2 or 4 pair matched molars. Two trained operators completed all treatments. Two additional trained and calibrated clinicians blindly re-evaluated crowns according to specified variables. A visual analogue scale was used to determine parental satisfaction. Examiner reliability was determined by Cohen's kappa scores and results were analysed statistically using Fisher's exact test. RESULTS: All crowns were retained after 12 months with no statistical difference in the clinical and radiographic success of posterior NuSmile(®) and Kinder™Krowns. Overall success was high with 81% of facings intact and 83% free of gingival inflammation after 12 months. Radiographically, 81% were successful. Veneer facing wear was significantly more likely to occur with opposing crowns (P=.02). Parental satisfaction was excellent with a mean score of 9.3 out of 10. CONCLUSIONS: These crowns combine the durability of conventional stainless steel crowns with improved esthetics and are proposed as a suitable alternative where esthetic demand is increased.
RCT Entities:
PURPOSE: To evaluate the success of posterior NuSmile(®) and Kinder™Krown and to determine the level of parental satisfaction with this treatment option. METHODS: Forty-eight crowns were placed in 18 children with a mean age of 5 years. A split mouth design was used. Each participant randomly received each crown type on 2 or 4 pair matched molars. Two trained operators completed all treatments. Two additional trained and calibrated clinicians blindly re-evaluated crowns according to specified variables. A visual analogue scale was used to determine parental satisfaction. Examiner reliability was determined by Cohen's kappa scores and results were analysed statistically using Fisher's exact test. RESULTS: All crowns were retained after 12 months with no statistical difference in the clinical and radiographic success of posterior NuSmile(®) and Kinder™Krowns. Overall success was high with 81% of facings intact and 83% free of gingival inflammation after 12 months. Radiographically, 81% were successful. Veneer facing wear was significantly more likely to occur with opposing crowns (P=.02). Parental satisfaction was excellent with a mean score of 9.3 out of 10. CONCLUSIONS: These crowns combine the durability of conventional stainless steel crowns with improved esthetics and are proposed as a suitable alternative where esthetic demand is increased.
Authors: Nicola P T Innes; David Ricketts; Lee Yee Chong; Alexander J Keightley; Thomas Lamont; Ruth M Santamaria Journal: Cochrane Database Syst Rev Date: 2015-12-31
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