表面處理對高透明氧化鋯冠與牙本質鍵結強度的影響

Effect of surface treatment on bond strength of high-transparency zirconia crown to dentin

羅鈞亮(Jun-Liang Luo)

指導教授 ： 燕敏

中山醫學大學/口腔醫學院/口腔科學研究所/碩士(2022年)

https://doi.org/10.6834/csmu202200007

摘要

由於氧化鋯陶瓷為惰性材料而牙本質為親水性材料，與牙科樹脂黏合劑不易產生好的黏合強度，會影響贋復物的耐用性。本研究目的是在氧化鋯與牙本質表面進行表面處理，評估表面處理對氧化鋯與牙齒間黏合強度的影響及探討經水熱老化後氧化鋯-樹脂黏合劑-牙本質間的黏合耐久性。本實驗使用高透氧化鋯( NexxZr T, Sagemax)製成長方形試片，在氧化鋯試片表面進行處理，實驗組分為無任何處理的對照組(C)；噴砂組(S)以50 µm氧化鋁砂在0.3 MPa壓力下噴砂；塗抹黏著劑組(SR Link, L)；噴砂後再塗抹黏著劑組(S+L)。使用人類大臼齒製成牙本質試片，在牙本質表面處理，實驗組分為無任何處理的對照組(C)；塗抹底劑組(Tetric ® N-Bond Universal, T)。使用三種市售的自黏性樹脂黏合劑(GC-LinkAce, RelyX U200, TotalCem)將各條件的氧化鋯與牙本質進行黏合，並將對照組及SLT組進行了10,000次冷熱循環後與浸泡於37℃恆溫槽中90天後的試片，使用萬能試驗機進行剪切強度測量，並計算在氧化鋯或牙本質上的樹脂黏合劑的殘留量評估破斷模式。實驗結果顯示，當氧化鋯與牙本質皆進行表面處理時(S+L+T, SLT組)使氧化鋯-樹脂黏合劑-牙本質間的黏合強度相較於單一處理時更顯著提高，三種樹脂黏合劑的SLT組在經過冷熱循環及浸泡試驗前後皆分別高於各自的對照組，具有顯著的差異(ρ<0.05)，其中GC的 SLT組在冷熱循環及浸泡試驗前後的黏合強度都顯著高於其他組別(ρ<0.05)。結論：氧化鋯表面經噴砂或塗抹黏著劑，以及牙本質表面塗抹底劑，均能顯著提升氧化鋯-樹脂黏合劑-牙本質間的剪切強度。對於氧化鋯贋復物-樹脂黏合劑-牙齒間的黏合性及口腔中的耐用性也具有影響力。

關鍵字

氧化鋯 ； 牙本質 ； 自黏性樹脂黏合劑 ； 剪切強度 ； 表面處理

並列摘要

Since dental zirconia ceramic is an inert material and dentin is a hydrophilic material, it is not easy to produce good bonding strength with dental resin adhesives, so as to affect the durability of the prosthesis in the oral cavity. The purpose of this study is to perform surface treatment on the surface of zirconia and dentin and to explore the effect of the surface on the bond strength between zirconia and teeth and to explore the durability of zirconia-resin adhesive-dentin after hydrothermal aging. This experiment uses high-transparency zirconia (NexxZr T, Sagemax) to make a rectangular specimen. The experimental component of zirconia surface treatment is the control group (C), and the sandblasting group (S) without any treatment uses 50 µm aluminum oxide sand blasting at a pressure of 0.3 MPa; Use the zirconia bonding agent group (SR Link, L); sandblasting + bonding agent group (S+L). A dentin layer specimen is made of human molars. The experimental component treated on the dentin surface is the control group (C) without any treatment; the primer group (Tetric ® N-Bond Universal, T). Use commercially available self-adhesive resin cement (GC-LinkAce) to bond the teeth to the surface of the zirconia specimen of each group, and then measure the group with the best bond strength (SLT), and then use two additional commercially available self-adhesive resin cement (RelyX U200; TotalCem). A universal testing machine was used to measure the shear bond strength and the control group and the SLT group were subjected to 10,000 thermocycling and aqueous aging at 37 ° C for 90 days to measure the shear bond strength. The experimental results show that the surface of zirconia and dentin after bond strength of the GC SLT group before and after thermocycling is significantly higher than that of the other groups (ρ<0.05), and before and after aqueous aging in the SLT group, there were also significant differences between the three resin cement groups (ρ<0.05). Conclusion of this study: The surface treatment of zirconia and dentin helps produce mechanical and chemical bonds between zirconia and teeth, which can improve the bond strength between zirconia and resin cement, as well as the durability in the oral cavity, which is also influential.

並列關鍵字

zirconia ； dentin ； self-adhesive resin cement ； shear bond strength ； surface treatment

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