Pour Hamed Karimi, Ansari Homeira, Tehrani Azita Mazaheri
Department of Prosthodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Dent Res J (Isfahan). 2023 Sep 27;20:99. eCollection 2023.
The retention of cement-retained implant-supported restorations can be affected by surface treatments such as anodizing. This study aimed to assess the effect of the anodization of titanium abutments on their tensile bond strength to implant-supported lithium disilicate (LDS) all-ceramic crowns.
This , experimental study was conducted on 26 straight abutments in two groups of anodization and control. In the anodization group, seven flat 9 V batteries connected in series were used to generate 64 V energy. A glass container was filled with 250 mL of distilled water, and 1 g of trisodium phosphate was added to it to create an electrolyte solution. The anode was then disconnected and the abutment was rinsed with acetone and deionized water. The surface roughness of abutments was measured by a profilometer. The abutments were scanned by a laboratory scanner, and maxillary central incisor monolithic crowns were fabricated by inLab SW18 software. The crowns were seated on the abutments and temporarily cemented with TempBond. They were then incubated in artificial saliva and subjected to 5000 thermal cycles. The tensile bond strength of crowns was then measured. Data were analyzed by the Student's -test and Mann-Whitney -tests (α =0.05).
The mean bond strength was significantly higher in anodized abutments ( = 0.003). The surface roughness of anodized abutments was slightly, but not significantly, higher than that of the control group ( > 0.05). The frequency of adhesive failure was almost twice higher in anodized abutments.
Anodization of titanium abutments significantly improved their tensile bond strength to implant-supported LDS all-ceramic crowns.
诸如阳极氧化等表面处理会影响水泥固定种植体支持修复体的固位。本研究旨在评估钛基台阳极氧化对其与种植体支持的二硅酸锂（LDS）全瓷冠的拉伸粘结强度的影响。
本实验研究在两组阳极氧化组和对照组的26个直基台上进行。在阳极氧化组中，使用七个串联的扁平9V电池产生64V能量。一个玻璃容器中装有250mL蒸馏水，并向其中加入1g磷酸三钠以制成电解质溶液。然后断开阳极，并用丙酮和去离子水冲洗基台。通过轮廓仪测量基台的表面粗糙度。用实验室扫描仪对基台进行扫描，并使用inLab SW18软件制作上颌中切牙单冠。将冠就位在基台上，并用TempBond暂时粘结。然后将它们置于人工唾液中并进行5000次热循环。然后测量冠的拉伸粘结强度。数据通过学生t检验和曼-惠特尼U检验进行分析（α = 0.05）。
阳极氧化基台的平均粘结强度显著更高（P = 0.003）。阳极氧化基台的表面粗糙度略高于对照组，但差异不显著（P>0.05）。阳极氧化基台的粘结失败频率几乎高出一倍。
钛基台的阳极氧化显著提高了其与种植体支持的LDS全瓷冠的拉伸粘结强度。
