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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Evaluation of Marginal Adaptation and Wear Resistance of Nanohybrid and Alkasite Restorative Resins
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Evaluation of Marginal Adaptation and Wear Resistance of Nanohybrid and Alkasite Restorative Resins

机译：纳米冬小碱恢复树脂的边缘适应和耐磨性评价

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Polymerisation shrinkage stresses developed during curing of adhesive resin cements may cause debonding at the margins of cavity leading to microgap formation with secondary caries and consequently restorative failure. Thus, a restoration should have good marginal integrity and wear resistance to obtain high success with clinical longevity.Aim: To compare the influence of thermo-mechanical stresses on marginal quality and wear of class II Mesio-Occluso-Distal (MOD) restorations filled with Solare Sculpt or Cention N.Materials and Methods: An invitro study was conducted at GITAM Dental College and Hospital, Visakhapatnam on 80 human extracted mandibular molars by preparing mesioocclusal-distal class two cavities that restored either with Solare Sculpt or Cention N resin composites. Baseline evaluations were recorded for marginal gaps (in ?μm) through Scanning Electron Microscope (SEM), and the weights of the samples were recorded by an electronic balancing instrument to measure the amount of wear (in grams). Following thermo-mechanical cyclic loading, all the restored teeth were evaluated again to record the same parameters. The statistical analysis was done using Statistical Package for the Social Sciences (SPSS) programme for windows version 22.0 (IBM, NY) software. An independent t-test for intergroup comparison and a dependent t-test for intragroup comparisons were done to analyse the tested parameters with the significance level established at (p=0.05).Results: In intergroup comparison, no difference in marginal adaptation was observed before thermo-mechanical loading between two materials with a p-value of 0.3625, but after thermomechanical loading Cention N exhibited significantly superior marginal adaptation with a p-value of 0.0374. Both the materials have shown a significant difference in the marginal adaptation after thermo-mechanical loading in the intragroup comparison with Cention N (0.0002) and Solare sculpt (0.0001) p-values. The wear rate was not different statistically between the materials with a p-value of 0.7144 before thermo-mechanical loading and 0.2285 after thermo-mechanical loading.Conclusion: Marginal adaptation of Cention N was superior to Solare Sculpt, whereas both the materials exhibited a similar wear rate.
机译：在粘合剂树脂固化过程中产生的聚合收缩应力在粘合剂树脂固化过程中可能导致腔的边缘，导致次要龋齿和后面的恢复失败。因此，恢复应该具有良好的边际完整性和耐磨性，以获得高成功的临床寿命。目的：比较热机械应力对II级Mesio-Occluso - 远端的边缘质量和磨损的影响填充索拉勒雕刻或急诊N. 材料和方法的修复方法：邀请犬牙科学院和医院进行了邀请研究，通过制备与索拉勒雕刻或索引恢复的水性克隆 - 远端型腔体系，visakhapatnam visakhapatnam。 Centen n树脂复合材料。通过扫描电子显微镜（SEM）记录基线评估以进行边缘间隙（In？μm），并通过电子平衡仪器记录样品的重量，以测量磨损量（以克）为单位。在热机械环状载荷之后，再次评估所有恢复的牙齿以记录相同的参数。统计分析是使用Windows版本22.0（IBM，NY）软件的社会科学（SPSS）程序的统计包完成。对Intragroup比较的独立T检验和用于Intragroup比较的依赖性T检验，以分析测试的参数，在（P = 0.05）中建立的显着性水平。结果：在互组比较中，边际适应没有差异在两种材料之间的热机械载荷之前观察到，P值为0.3625，但在热机械载荷章节中呈现出显着优越的边际适应性，P值为0.0374。在与癌族群中的热机组中的热机械加载后，两种材料都显示出显着差异，与Centroup N（0.0002）和索尔拉的雕刻（0.0001）p值。在热机械负载前的p值为0.7144的材料之间的耐磨率与0.2285在热机械载荷后的材料之间没有差异。结论：Centent N的边缘适应优于索拉拉雕刻，而材料表现出类似的磨损率。

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