CLINICAL EVALUATION OF FLOWABLE COMPOSITE RESIN

流动性复合树脂的临床评价

• 批准号: 7376290
• 负责人: Juan J. L. Lertora
• 金额: $ 0.12万
• 依托单位: TULANE UNIVERSITY OF LOUISIANA
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-12-01 至 2006-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7376290
• 关键词: CLINICAL; EVALUATION; FLOWABLE; COMPOSITE; RESIN

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. This study will examine the clinical efficacy of a newly developed flowable composite resin for the restoration of small occlusal caries occlusal lesions. Small carious lesion occlusal lesions will be restored with one of two flowable composite resins. One Tetric-Flow is a well-recognized composite resin with decreased filler loading to improve adaptation. The other is a new material from L. D. Caulk. These materials will be placed in two occlusal cavity preparations in the same patient and evaluated for wear, retention, color match, marginal adaptation, anatomic form, marginal discoloration, axial contour, and secondary caries. Post-operative Sensitivity will be measured using a Visual Analog Scale and Gingival Condition will be assessed using the Gingival Index of Loe and Silness. Thirty class 1 restorations of each material for a total of 60 restorations will be inserted. The lesions will be prepared and caries removed, with rubber dam isolation. All bonding will be done using each manufacturer's bonding agent to moist surfaces. The two preparations will receive the different composites and different adhesive techniques to evaluate those systems. The restoration will be placed in one or two increments with each increment cured for 20 seconds with a visible light-curing unit. Carbide finishing burs will be used to remove gross excess, followed by finishing strips and disks (Enhance Polishing System). Each restoration will be evaluated directly and indirectly at baseline (one week after restoration placement), 3 months, 6 months, and one year. Using calibrated examiners, each restoration will be evaluated for marginal discoloration, secondary caries, loss of anatomical form, retention, surface texture, and marginal adaption. Slides will document marginal staining of the composite restoration. Impressions will be made at each recall and used to determine wear of the restorations. Groups will be compared annually using an ANOVA for Repeated Measures with the level of significance set at .05.

该子项目是利用 NIH/NCRR 资助的中心拨款提供的资源的众多研究子项目之一。子项目和研究者 (PI) 可能已从另一个 NIH 来源获得主要资金，因此可以在其他 CRISP 条目中出现。列出的机构是中心的机构，不一定是研究者的机构。本研究将检验新开发的可流动复合树脂用于修复小型咬合面龋齿咬合病变的临床疗效。小龋齿咬合损伤将用两种可流动复合树脂之一修复。 One Tetric-Flow 是一种公认​​的复合树脂，它减少了填料用量以提高适应性。另一种是 L. D. Caulk 的新材料。这些材料将被放置在同一患者的两个咬合腔预备物中，并评估磨损、固位、颜色匹配、边缘适应、解剖形态、边缘变色、轴向轮廓和继发龋。术后敏感度将使用视觉模拟量表进行测量，牙龈状况将使用 Loe 和 Silness 牙龈指数进行评估。将插入每种材料的 30 个 1 级修复体，总共 60 个修复体。将准备病变并去除龋齿，并用橡皮障隔离。所有粘合都将使用每个制造商的粘合剂在潮湿的表面上完成。这两种制剂将采用不同的复合材料和不同的粘合技术来评估这些系统。修复体将以一或两个增量放置，每个增量使用可见光固化装置固化 20 秒。将使用硬质合金精加工车针去除多余的部分，然后使用精加工条和圆盘（增强抛光系统）。每个修复体将在基线（修复体放置后一周）、3 个月、6 个月和一年时进行直接和间接评估。使用经过校准的检查员，将评估每个修复体的边缘变色、继发龋、解剖形状的损失、保留、表面纹理和边缘适应性。载玻片将记录复合修复体的边缘染色。每次召回时都会留下印模并用于确定修复体的磨损情况。每年将使用重复测量的方差分析对各组进行比较，显着性水平设置为 0.05。