The aim of this study was to evaluate, in vitro, the microbiological sealing at the implant and different angles frictional prosthetic abutment interface, submitted or not to mechanical cycling, as well as the deactivation force and evaluation of the implant-abutment interface by scanning electron microscopy. For this study, the sealing capacity of eighty sets of abutments/implants of each angle, with and without mechanical cycling, with internal conical connection (locking tapper) (4.3 mm × 9.0 mm) constituted in Titanium alloy (Ti6Al4V), and stainless steel angled prosthetic abutment was evaluated (18Cr14Ni2.5Mo) according to ASTM F138-13a (Arcsys, FGM, Joinville, Brazil), 6 mm high and 4.2 mm in diameter at the coronary portion, and 3.5 mm high transmucosal, in 4 different angles (0, 5, 10 and 20°). After in vitro tests, 100% biological sealing was observed at the implant / prosthetic abutment interface within cycled and non-cycled conditions, for the straight, 5, 10 and 20° inclination groups. There was no statistically significant difference in the removal force of the prosthetic abutments at different angles, under non-cycled conditions; however, under mechanical loading, the deactivation force was significantly higher for straight prosthetic abutments than with 10 and 20° of angulation. Surface analysis revealed good adaptation between implants and abutments, and the presence of wear areas, independently of mechanical loading. It is concluded that the analysis of implant and prosthetic abutment interface revealed good adaptation between the parts, for all analyzed samples.

本研究的目的是在体外评估种植体和不同角度摩擦修复基台界面的微生物密封，是否接受机械循环，以及通过扫描电子对种植体-基台界面的失活力和评估。显微术。在本研究中，每个角度的 80 组基台/种植体的密封能力，有和没有机械循环，内部锥形连接（锁定锥）（4.3 毫米 × 9.0 毫米）由钛合金 (Ti6Al4V) 和不锈钢构成根据 ASTM F138-13a（Arcsys，FGM，Joinville，巴西）评估成角度的修复基台 (18Cr14Ni2.5Mo)，冠状部分高 6 毫米，直径 4.2 毫米，跨粘膜高 3.5 毫米，有 4 个不同的角度（ 0、5、10 和 20°）。后在体外测试中，对于直线、5、10 和 20° 倾斜组，在循环和非循环条件下，在种植体/修复基台界面处观察到 100% 生物密封。在非循环条件下，不同角度的修复基台去除力没有统计学上的显着差异；然而，在机械负荷下，与 10° 和 20° 成角相比，直义齿基台的失活力显着更高。表面分析显示种植体和基台之间具有良好的适应性，并且存在磨损区域，与机械载荷无关。结论是，对于所有分析的样品，种植体和修复体基台界面的分析表明部件之间具有良好的适应性。