Szmukler-Moncler Serge, Blus Cornelio, Morales Schwarz David, Orrù Germano
Oral Biotechnology Laboratory, Surgical Sciences Department, University of Cagliari, 09126 Cagliari, Italy.
Private Practice, Calle Estadío, 1, 47006 Villadolid, Spain.
Materials (Basel). 2020 Nov 11;13(22):5074. doi: 10.3390/ma13225074.
Our purpose was to physically characterize the surface, and the subsurface, of a macro- and micro-textured titanium grade 5 dental implant surface obtained by etching only, without sandblasting. The topography, surface roughness, as well as the surface structure and subsurface distribution of elements, were determined by scanning electronic microscopy (SEM), non-contact profilometry, X-ray diffraction (XRD), and a concentration profile performed by Auger electron spectroscopy (AES). The hydrogen concentration in the implants was measured; the ability to generate nanostructures when stored in deionized water was also investigated. Under SEM, the surface resembled a sandblasted and etched titanium surface with its typical macro- and micro-texture; roughness was moderate with average roughness (Sa) 1.29 µm. No titanium hydride was found at the implant surface and no enrichment of any alloying element was identified at the surface and subsurface. Hydrogen concentration was 79 ppm, within the normative tolerance (<130 ppm). After storage in water for 6 months, densely packed finger-like nanostructures were observed. The clinical advantage of this textured titanium alloy surface is that it displays the typical macro- and micro-features of a moderately rough sandblasted and etched (SLA) titanium surface without leaving behind any foreign sandblasting material.
我们的目的是对仅通过蚀刻而非喷砂处理获得的宏观和微观纹理的5级钛牙科种植体表面及亚表面进行物理表征。通过扫描电子显微镜（SEM）、非接触轮廓仪、X射线衍射（XRD）以及俄歇电子能谱（AES）进行的浓度分布分析，确定了其形貌、表面粗糙度以及元素的表面结构和亚表面分布。测量了种植体中的氢浓度；还研究了其在去离子水中储存时生成纳米结构的能力。在SEM下，该表面类似于经过喷砂和蚀刻的钛表面，具有典型的宏观和微观纹理；粗糙度适中，平均粗糙度（Sa）为1.29 µm。在种植体表面未发现氢化钛，在表面和亚表面也未发现任何合金元素的富集。氢浓度为79 ppm，在标准公差范围内（<130 ppm）。在水中储存6个月后，观察到了密集排列的指状纳米结构。这种纹理化钛合金表面的临床优势在于，它展现出了适度粗糙的喷砂和蚀刻（SLA）钛表面的典型宏观和微观特征，且不会残留任何外来喷砂材料。
