Conserva Enrico, Generali Luigi, Bandieri Alberto, Cavani Francesco, Borghi Francesco, Consolo Ugo
Department of Surgery, Medicine, Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance, School of Dentistry, University of Modena and Reggio Emilia, Modena, Italy.
Department of Biomedical, Metabolic and Neural Sciences, Section of Human Morphology, University of Modena and Reggio Emilia, Modena, Italy.
Odontology. 2018 Apr;106(2):145-153. doi: 10.1007/s10266-017-0317-2. Epub 2017 Aug 22.
Implants with rough surfaces are today widely used. It has been speculated that rough surfaces (Ra > 0.2 μm) provide a better "substrate" for retention and accumulation of plaque in terms of area, thickness and colony-forming unit that can eventually lead to peri mucositis and/or peri-implantitis. The aim of this investigation was to evaluate in vivo the plaque accumulation after 48 h on three implant surfaces with different treatments. For this investigation, we used 21 sterilized titanium disks, with a diameter of 8mm and a thickness of 3 mm, provided by the manufacturer: 7 with machined surface, as smooth control, 7 with HA grit sandblasted RBM surface and 7 with Ca incorporated in titanium Xpeed surface. One disk for each surface treatment was characterized at time 0 by SEM and AFM to study, respectively, the surface morphology and roughness. The other 18 disks were mounted randomly on three upper acrylic bites in a buccal lateral position, worn for 48 h by three volunteer students for plaque accumulation. After 48 h each disk was removed and analyzed qualitatively and quantitatively by an independent operator, not involved into the study, in order to avoid bias. Data collected were statistically analyzed by one-way ANOVA. The qualitative analysis showed no differences in terms of total plaque accumulation between the surfaces. Data from quantitative analysis using Anova Test showed no significance between all groups. In this in vivo investigation all the surfaces studied promoted plaque formation. The degree of surface roughness seems not to be a critical factor for plaque accumulation.
如今，具有粗糙表面的种植体被广泛使用。据推测，粗糙表面（Ra > 0.2μm）在面积、厚度和菌落形成单位方面为菌斑的滞留和积聚提供了更好的“基质”，最终可能导致黏膜周围炎和/或种植体周围炎。本研究的目的是在体内评估三种经过不同处理的种植体表面在48小时后的菌斑积聚情况。在本研究中，我们使用了由制造商提供的21个经过消毒的钛盘，直径为8mm，厚度为3mm：7个具有机械加工表面，作为光滑对照；7个具有HA喷砂RBM表面；7个具有钛Xpeed表面掺入钙。在时间0时，对每种表面处理的一个盘进行扫描电子显微镜（SEM）和原子力显微镜（AFM）表征，分别研究表面形态和粗糙度。另外18个盘随机安装在三个上颌丙烯酸咬合块的颊侧位置，由三名志愿者学生佩戴48小时以积聚菌斑。48小时后，每个盘被取出，由一名未参与该研究的独立操作人员进行定性和定量分析，以避免偏差。收集的数据通过单因素方差分析进行统计分析。定性分析表明，各表面之间在总菌斑积聚方面没有差异。使用方差分析测试进行定量分析的数据表明，所有组之间没有显著性差异。在这项体内研究中，所有研究的表面都促进了菌斑形成。表面粗糙度似乎不是菌斑积聚的关键因素。
