Antagonistic Primary Tooth Wear Caused by Opposing BioFLX®, Zirconia, and Stainless Steel Crowns: Chewing Cycle Simulation Study.

Q3 Dentistry
Pragati Pareek, Sunnypriyatham Tirupathi, Karuna Kumari, Lamea Afnan
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引用次数: 0

Abstract

Introduction: The choice of crown material for primary teeth restorations is crucial in pediatric dentistry, as it impacts both the restoration's longevity and the wear on opposing teeth. This study aimed to compare the wear on primary teeth and their antagonists when opposed by zirconia, BioFLX®, and stainless steel crowns (SSCs), using a multiaxis computer-controlled chewing simulator (SD Mechatronik CS-4.4) to replicate masticatory mechanisms and forces.

Materials and methods: Primary teeth specimens were mounted and paired with opposing preformed crowns of zirconia, BioFLX®, and stainless steel (SS). These pairs were subjected to 2,40,000 chewing cycles using a chewing simulator, simulating 1 year of oral chewing conditions. The volumetric wear of the crowns and their antagonists was measured using digital scanning (Medit Lab scanner) both pre- and postsimulation. Data were analyzed using the Wilcoxon signed-rank test, Kruskal-Wallis test, and Mann-Whitney U test to assess intra- and intergroup differences.

Results: After 2,40,000 chewing cycles, antagonistic wear varied significantly among crown materials (p = 0.006), with zirconia antagonist causing the highest wear (1.00 mm3), followed by SS antagonist (0.58 mm3), and BioFLX® antagonist (0.24 mm3), which caused the least wear. Crown wear differences were not statistically significant (p = 0.147), with zirconia crowns exhibiting a volume reduction of 0.26 mm3, BioFLX® crowns 0.48 mm3, and SSCs 0.11 mm3. BioFLX® demonstrated superior performance in minimizing antagonistic wear.

Conclusion: Primary teeth opposed by BioFLX® crowns exhibited the least wear, making it the most favorable material for minimizing antagonistic tooth wear. SSCs caused moderate wear, while zirconia crowns resulted in the highest wear on opposing primary teeth. These findings suggest that BioFLX® is a promising option for pediatric restorations, as it better preserves primary tooth structure. Clinicians should consider these results when choosing crown materials to ensure optimal long-term outcomes in pediatric patients.

How to cite this article: Pareek P, Tirupathi S, Kumari K, et al. Antagonistic Primary Tooth Wear Caused by Opposing BioFLX®, Zirconia, and Stainless Steel Crowns: Chewing Cycle Simulation Study. Int J Clin Pediatr Dent 2025;18(7):784-791.

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BioFLX®、氧化锆和不锈钢牙冠引起的拮抗牙磨损:咀嚼循环模拟研究
乳牙修复体冠材料的选择在儿童牙科中是至关重要的,因为它既影响修复体的寿命,也影响对牙的磨损。本研究旨在比较氧化锆、BioFLX®和不锈钢冠(ssc)对乳牙及其拮抗剂的磨损,使用多轴计算机控制咀嚼模拟器(SD Mechatronik CS-4.4)来模拟咀嚼机制和力。材料和方法:将乳牙标本固定并与相对的氧化锆、BioFLX®和不锈钢(SS)预制冠配对。研究人员使用咀嚼模拟器,模拟1年的口腔咀嚼情况,对这些小鼠进行24万次咀嚼循环。使用数字扫描(Medit Lab扫描仪)测量模拟前后冠及其拮抗剂的体积磨损。数据分析采用Wilcoxon符号秩检验、Kruskal-Wallis检验和Mann-Whitney U检验来评估组内和组间差异。结果:经过2万次咀嚼循环后,牙冠材料之间的拮抗磨损差异显著(p = 0.006),其中氧化锆拮抗剂造成的磨损最大(1.00 mm3),其次是SS拮抗剂(0.58 mm3), BioFLX®拮抗剂(0.24 mm3)造成的磨损最小。冠磨损差异无统计学意义(p = 0.147),氧化锆冠的体积减少0.26 mm3, BioFLX®冠的体积减少0.48 mm3, ssc冠的体积减少0.11 mm3。BioFLX®在减少拮抗磨损方面表现出卓越的性能。结论:BioFLX®牙冠对乳牙的磨耗最小,是减少拮抗牙磨耗的最佳材料。ssc对乳牙的磨损程度中等,而氧化锆冠对乳牙的磨损程度最高。这些发现表明,BioFLX®是一种很有前途的儿童修复选择,因为它能更好地保留原牙结构。临床医生在选择牙冠材料时应考虑这些结果,以确保儿科患者的最佳长期疗效。如何引用本文:Pareek P, Tirupathi S, Kumari K等。BioFLX®、氧化锆和不锈钢牙冠引起的拮抗牙磨损:咀嚼循环模拟研究中华临床儿科杂志,2015;18(7):784-791。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.20
自引率
0.00%
发文量
135
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