与致密烧结氧化铝表面的粘结：喷砂和二氧化硅涂层对粘结水门汀剪切粘结强度的影响。

Bonding to densely sintered alumina surfaces: effect of sandblasting and silica coating on shear bond strength of luting cements.

作者信息

Blixt M, Adamczak E, Lindén L A, Odén A, Arvidson K

机构信息

Department of Dental Biomaterials, Karolinska Institutet, Stockholm, Sweden.

出版信息

Int J Prosthodont. 2000 May-Jun;13(3):221-6.

PMID:11203636

Abstract

PURPOSE

An important determinant of the clinical success of ceramic restorations is the bond strength of the luting agent to the seating surface and the prepared tooth structures. Manufacturers of ceramic systems frequently specify both the luting agent and preluting treatment of the seating surface of the crown. Procera AllCeram is an all-ceramic crown comprising a porcelain-veneered coping of densely sintered, high-purity aluminum oxide. This study evaluated the shear bond strength of 4 luting agents: zinc-phosphate, glass-ionomer, resin-modified glass-ionomer, and resin cement (dual cured) to Procera aluminum oxide coping material. The luting agents were subjected to different surface treatments: untreated, sandblasted, or silica coated by the Rocatec system.

MATERIALS AND METHODS

Cylindric and cubic specimens of the coping material were luted together, and the shear force necessary to separate the cylinder from the cube was measured with a universal testing machine. The surfaces of the specimens were also analyzed.

RESULTS

No significant differences were recorded for the shear bond strengths of the luting agents to the untreated aluminum oxide. Glass-ionomer and the resin-modified glass-ionomer cements had the highest values (4.2 +/- 2.5 MPa and 4.3 +/- 1.9 MPa, respectively), and the lowest were 3.3 +/- 2.3 MPa for the resin cement and 3.2 +/- 1.0 MPa for the zinc-phosphate cement. Similar results were recorded for the sandblasted aluminum oxide surfaces, except with the glass-ionomer, which was significantly higher (12.9 +/- 2.4 MPa). For all 4 luting agents, the highest shear bond strength values were recorded for the silica-coated specimens; the highest was for the resin cement, at 36.2 +/- 7.8 MPa.

CONCLUSION

The bond strengths between resin cement and aluminum oxide specimens treated by the Rocatec system were significantly higher than those of the other materials and surface treatments evaluated.

摘要

目的

陶瓷修复体临床成功的一个重要决定因素是粘接剂与就位表面及预备牙体结构之间的粘结强度。陶瓷系统制造商经常会指定冠就位表面的粘接剂和预粘接处理方法。Procera全瓷冠是一种全瓷冠，由致密烧结的高纯度氧化铝烤瓷熔附冠核组成。本研究评估了4种粘接剂（磷酸锌、玻璃离子、树脂改性玻璃离子和树脂水门汀（双重固化））与Procera氧化铝冠核材料之间的剪切粘结强度。对粘接剂进行了不同的表面处理：未处理、喷砂处理或采用Rocatec系统进行硅涂层处理。

材料与方法

将冠核材料的圆柱形和立方体试件粘结在一起，用万能试验机测量将圆柱体与立方体分离所需的剪切力。还对试件表面进行了分析。

结果

对于未处理的氧化铝，各粘接剂的剪切粘结强度无显著差异。玻璃离子和树脂改性玻璃离子水门汀的值最高（分别为4.2±2.5MPa和4.3±1.9MPa），最低的是树脂水门汀，为3.3±2.3MPa，磷酸锌水门汀为3.2±1.0MPa。喷砂处理的氧化铝表面得到了类似的结果，但玻璃离子的结果显著更高（12.9±2.4MPa）。对于所有4种粘接剂，硅涂层试件的剪切粘结强度值最高；最高的是树脂水门汀，为36.2±7.8MPa。