Labban Nawaf, AlSheikh Rasha, Lund Melvin, Matis Bruce A, Moore B Keith, Cochran Michael A, Platt Jeffrey A
Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia.
Department of Restorative Dental Science, College of Dentistry, Imam Abdulrahan Bin Faisal University, Dammam 34212, Saudi Arabia.
Polymers (Basel). 2021 Aug 25;13(17):2851. doi: 10.3390/polym13172851.
: The study evaluated the water sorption (WSP) and water solubility (WSL) characteristics of different luting agents over a 180-day water storage period. : Nine luting materials, i.e., conventional resin cement: Panavia F (PF), Rely X ARC (RA), self-adhesive resin cement: Rely X Unicem (RU), Breez (BZ), Maxcem Elite (MX), BisCem (BC) and resin-modified glass ionomer cement: FujiCem (FC), FujiPlus (FP) Rely X luting plus (RL) were assessed and fifty-two-disc specimens of each material were fabricated. All specimens were desiccated until a constant weight (W0) was reached. Thirteen specimens for each luting material were then randomly assigned to one of the four water immersion periods (7, 30, 90, and 180 days). After each period, the specimens were removed from the water and weighed to get W1. The samples were again desiccated for a second time and W was measured. Both WSP and WSL were determined by the following equations: WSP (%) = (W - W) × 100/W and WSL (%) = (W - W) × 100/W. Assessments were performed following ISO standards. ANOVA was used to assess the effect of luting agent and time period on water sorption and solubility. Pair-wise comparisons were adjusted using Tukey's multiple comparison procedure. A significance level of 0.05 was used for all statistical tests. : The highest mean WSP and WSL (WSP/WSL) were demonstrated by resin-modified glass-ionomers (RL 18.32/3.25, FC 17.08/4.83, and FP 14.14/1.99), while resin luting agents showed lower WSP and WSL results (PF 1.6/0.67 and RA 1.76/0.46), respectively. The self-adhesive agents exhibited a wide range of WSP and WSL values (RU 1.86/0.13, BZ 4.66/0.93, and MX 3.68/1.11). Self-adhesive cement showed lower WSP and WSL compared with the resin-modified glass-ionomers ( < 0.05). All the materials reached equilibrium after 90-days. : Resin-based luting materials have the lowest sorption and solubility. Rely X Unicem self-adhesive luting materials were comparable to resin luting materials for WSL and WSP. Resin-modified glass-ionomer showed the highest water sorption and solubility compared with both resin and self-adhesive materials.
该研究评估了不同粘结剂在180天储水期内的吸水性能(WSP)和水溶性(WSL)特征。选用了9种粘结材料,即传统树脂水门汀:Panavia F(PF)、Rely X ARC(RA),自粘结树脂水门汀:Rely X Unicem(RU)、Breez(BZ)、Maxcem Elite(MX)、BisCem(BC),以及树脂改性玻璃离子水门汀:FujiCem(FC)、FujiPlus(FP)、Rely X luting plus(RL),并制备了每种材料的52个圆盘试样。所有试样均进行干燥处理,直至达到恒重(W0)。然后将每种粘结材料的13个试样随机分配到四个水浸时间段(7天、30天、90天和180天)中的一个。每个时间段结束后,将试样从水中取出称重,得到W1。样品再次进行干燥处理,然后测量W。WSP和WSL均通过以下公式计算:WSP(%)=(W1 - W0)×100/W0,WSL(%)=(W1 - W0)×100/W0。评估按照ISO标准进行。采用方差分析评估粘结剂和时间段对吸水和溶解性的影响。使用Tukey多重比较程序进行两两比较。所有统计检验的显著性水平均设定为0.05。树脂改性玻璃离子水门汀的平均WSP和WSL最高(RL为18.32/3.25,FC为17.08/4.83,FP为14.14/1.99),而树脂粘结剂的WSP和WSL结果较低(PF为1.6/0.67,RA为1.76/0.46)。自粘结剂的WSP和WSL值范围较广(RU为1.86/0.13,BZ为4.66/0.93,MX为3.68/1.11)。与树脂改性玻璃离子水门汀相比,自粘结水门汀的WSP和WSL较低(P<0.05)。所有材料在90天后达到平衡。树脂基粘结材料的吸附和溶解性最低。Rely X Unicem自粘结材料在WSL和WSP方面与树脂粘结材料相当。与树脂和自粘结材料相比,树脂改性玻璃离子水门汀的吸水和溶解性最高。