Simsek Huseyin, Derelioglu Sera
Department of Pedodontics, Faculty of Dentistry, Ordu University, 52100 Ordu, Turkey.
Department of Pedodontics, Faculty of Dentistry, Ataturk University, 25030 Erzurum, Turkey.
Biomed Res Int. 2016;2016:4292761. doi: 10.1155/2016/4292761. Epub 2016 Oct 17.
. The aim of this study was to compare to fracture resistance test of inlay restorations prepared using direct inlay technique (Gradia® Direct Composite) and Indirect Restoration System® (Gradia Indirect Composite) and CAD/CAD system (Vita Enamic® Block). . 48 noncarious extracted maxillary second primary molars were randomly divided into 4 groups with 12 in each group. All the teeth were prepared based on inlay class II preparations except for the control group. Other groups were restored with Gradia Direct Composite, Gradia Indirect Composite, and Vita Enamic Block, respectively. All restorations were cemented self-adhesive dual cure resin (3M Espe, RelyX™ Unicem Aplicap). A fracture test was performed using a compressive load. Results were analyzed using one-way analysis of variance and Duncan's post hoc multiple comparison tests ( = 0.05). . Vita Enamic Block and Gradia Indirect Composite showed significantly higher fracture resistance than Gradia Direct Composite ( < 0.05). There was no significant difference fracture resistance between Vita Enamic Block and Gradia Indirect Composite ( > 0.05). All restorations tested led to a significant reduction in fracture resistance ( < 0.05). In inlay restorations, Indirect Restoration Systems and CAD/CAM systems were applied successfully together with the self-adhesive dual cure resin cements in primary molars.
本研究的目的是比较采用直接嵌体技术（Gradia® 直接复合树脂）、间接修复系统（Gradia 间接复合树脂）和 CAD/CAM 系统（Vita Enamic® 块体）制备的嵌体修复体的抗折性测试。48 颗非龋性拔除的上颌第二乳磨牙随机分为 4 组，每组 12 颗。除对照组外，所有牙齿均按照 II 类嵌体预备。其他组分别用 Gradia 直接复合树脂、Gradia 间接复合树脂和 Vita Enamic 块体进行修复。所有修复体均用自粘结双固化树脂（3M Espe，RelyX™ Unicem Aplicap）粘结。使用压缩载荷进行抗折测试。结果采用单因素方差分析和邓肯事后多重比较检验进行分析（α = 0.05）。Vita Enamic 块体和 Gradia 间接复合树脂的抗折性显著高于 Gradia 直接复合树脂（P < 0.05）。Vita Enamic 块体和 Gradia 间接复合树脂之间的抗折性无显著差异（P > 0.05）。所有测试的修复体均导致抗折性显著降低（P < 0.05）。在嵌体修复中，间接修复系统和 CAD/CAM 系统与自粘结双固化树脂粘结剂一起成功应用于乳磨牙。
