Saraswathi V Naik, Shruti V Thakkar, Deepak Naik, Amrita Chakraborty, G V Usha
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引用次数: 0
Abstract
Aim: To compare and evaluate the clinical success rate of computer-aided designed and milled polymethyl methacrylate (PMMA) crowns, three-dimensional (3D)-printed photopolymer resin crowns with prefabricated zirconia crowns in primary molars.
Materials and methods: This study was carried out in children requiring crowns in the age-group of 4-8 years. Initial clinical and radiographic analyses for all the children were carried out, and 45 children were included in the study. Impression-making techniques were evaluated for their preference, comfort, pain, gag reflex, and breathing difficulty using a visual analog scale (VAS). Clinical evaluation was done using the United States Public Health Service (USPHS) criteria at baseline, 3, 6, and 9 months. Friedman test was used for statistical analysis.
Results: For the evaluation of impression technique for patient's preference, comfort, pain, and gag reflex, there was a statistically significant difference for all the parameters with a p-value of 0.00, 0.00, 0.04, and 0.00, respectively. The retention rate was 80% for PMMA crowns, 93.33% for 3D-printed photopolymer resin crowns, and 86.66% for prefabricated zirconia crowns at the end of 9 months. The marginal adaptation was better with photopolymer resin crowns with a statistically significant difference at the end of 9 months (p = 0.000). There was no gingivitis associated with all the PMMA and photopolymer resin crowns, whereas mild and moderate gingivitis was present with zirconia crowns, with a statistically significant difference at 9 months (p = 0.000).
Conclusion: Polymethyl methacrylate crowns and photopolymer resin crowns showed good marginal adaptation and biocompatibility as compared to prefabricated zirconia crowns.
How to cite this article: Naik SV, Thakkar SV, Naik D, et al. Three-dimensional-printed Photopolymer Resin Crowns vs Computer-aided Milled Polymethyl Methacrylate Crowns with Prefabricated Zirconia Crowns for Primary Molars: A Randomized Clinical Trial. Int J Clin Pediatr Dent 2025;18(5):506-513.