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A Randomized Clinical Trial Investigating the Performance of Two Commercially Available Posterior Pediatric Preveneered Stainless Steel Crowns: A Continuation Study

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Purpose: This study aimed to compare the clinical and radiographic success of preveneered posterior NuSmile® and Kinder Krowns® over one year and to assess the level of parental satisfaction with their esthetics. Methods: Three trained operators placed 120 crowns in a split-mouth design with a random allocation for 36 participants (mean age: 5.8 years) who received two, four, six, or eight crowns. Blind assessment of the clinical and radiographic performance of the restorations was performed by four calibrated examiners after one year. Results were analyzed by Fisher's exact test and McNemar test. Examiner reliability was determined by Cohen's kappa score. Visual analogue scale (VAS) was used to assess the level of parental satisfaction. Results: All crowns but one were retained, and the majority (83 percent) had no facing fractures. Parental satisfaction was high (9.4/10 on the VAS). Primary maxillary first molar crowns had more occlusal facing fractures than their mandibular counterparts (P=.02). Primary mandibular second molar crowns showed more facing fractures than their maxillary counterparts (P=.008). Both types showed no statistical difference in most categories, but Kinder Krowns had more facing fractures (P<.02). Conclusion: Posterior preveneered crowns have predictable durability at 12 months while offering natural appearance to restored teeth.
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Keywords: DENTAL ESTHETICS; PEDIATRIC CROWNS; PRIMARY DENTITION

Document Type: Research Article

Affiliations: 1: Division of Public and Child Dental Health, Dublin Dental University Hospital, Trinity College, Dublin, Ireland. [email protected] 2: Division of Public and Child Dental Health, Dublin Dental University Hospital, Trinity College, Dublin, Ireland

Publication date: November 1, 2014

More about this publication?
  • Pediatric Dentistry is the official publication of the American Academy of Pediatric Dentistry, the American Board of Pediatric Dentistry and the College of Diplomates of the American Board of Pediatric Dentistry. It is published bi-monthly and is internationally recognized as the leading journal in the area of pediatric dentistry. The journal promotes the practice, education and research specifically related to the specialty of pediatric dentistry. This peer-reviewed journal features scientific articles, case reports and abstracts of current pediatric dental research.
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