Department of Paediatric Dentistry, Faculty of Dentistry, Ordu University, Guzelyali, Ordu, Turkey.
Department of Biostatistics, Faculty of Medicine, Ordu University, Guzelyali, Ordu, Turkey.
Int J Paediatr Dent. 2018 Mar;28(2):239-248. doi: 10.1111/ipd.12347. Epub 2017 Nov 24.
The most important process in treating grossly decayed teeth, including decay in the pulp, is the ability to hold a retainer in for a short time.
The aim of this study was to investigate the bond strengths of different adhesive systems and post materials on primary teeth.
One hundred and twenty extracted maxillar primary central incisor teeth were randomly divided into two main groups (total-etch and self-etch adhesive systems) and five subgroups (1: control-nanohybrid composite resin, 2: pre-impregnated glass fiber, 3: unsaturated glass fiber, 4: polyethylene fiber, 5: short-fiber reinforced composite resin). The push-out test was performed using a universal testing machine with a crosshead speed of 0.5 mm/min.
No statistically significant difference was detected between the two different adhesive systems and five different materials in terms of the maximum values measured for fractures in the specimens when both the adhesive materials and the short-post materials were evaluated separately (P > 0.05). However, as a result of multiple comparisons made, it was found that statistical differences between the groups applying the total-etch adhesive system occurred in Groups 3 and 5. The highest push-out test values were measured in Group 5 and Group 1, and the lowest value in Group 3. Although the fracture type distribution in the total-etch adhesive system groups was not statistically different based on the material used (χ = 11,865; P = 0.309), the self-etch adhesive systems did show differences (χ = 28,463; P < 0.001). Both the total-etch and the self-etch adhesive system groups showed mostly adhesive failures.
The fiber-reinforced and nanohybrid composite resin had higher values in the short-post technique, and there was no significant difference between the different fiber posts.
治疗严重龋坏的牙齿，包括牙髓龋坏，最重要的过程是能够在短时间内保持固位体。
本研究旨在研究不同黏接系统和桩材料对乳前牙的黏接强度。
将 120 颗上颌乳中切牙随机分为两组（全酸蚀和自酸蚀黏接系统）和五组（1：对照-纳米复合树脂，2：预浸渍玻璃纤维，3：不饱和玻璃纤维，4：聚乙烯纤维，5：短纤维增强复合树脂）。使用万能试验机以 0.5mm/min 的十字头速度进行推出试验。
当分别评估黏接材料和短桩材料时，两种不同黏接系统和五种不同材料的试件断裂时测量的最大数值之间没有统计学差异（P>0.05）。然而，经过多次比较，发现应用全酸蚀黏接系统的各组之间存在统计学差异。在 3 组和 5 组中，最高的推出试验值出现在 5 组和 1 组，而 3 组的最低值。虽然全酸蚀黏接系统各组的断裂类型分布与所使用的材料无统计学差异（χ²=11.865；P=0.309），但自酸蚀黏接系统有差异（χ²=28.463；P<0.001）。全酸蚀和自酸蚀黏接系统组均显示出主要的黏接失败。
纤维增强型和纳米复合树脂在短桩技术中具有更高的值，而不同纤维桩之间没有显著差异。
