Department of Periodontology, College of Dentistry, Research Institute for Periodontal Regeneration, Yonsei University, Seoul, Korea.
Section of graduate Periodontology, Faculty of Odontology, Complutense University of Madrid, Madrid, Spain.
Clin Oral Implants Res. 2019 Jun;30(6):578-587. doi: 10.1111/clr.13446. Epub 2019 May 7.
To evaluate in vitro the changes in implant surface topography and roughness of commercial implants after instrumentation with five decontamination protocols.
Seventy-two titanium implants with a sandblasted and acid-etched (SLA) surface were placed 5 mm supra-crestally. Five groups of twelve implants were instrumented with the following protocols: a metal scaler tip (SCAL), a thermoplastic scaler tip (PEEK), a round titanium brush (RBRU), a tufted brush with titanium bristles (TNBRU), and a glycine-based air-powder abrasive (GLYC). A sixth group with untreated implants was used as control. Scanning electron microscope and confocal laser scanning microscope were utilized to evaluate the changes in the implant surfaces.
The SCAL caused pronounced macroscopic alterations and damage of the implant surface, the PEEK left remnants of the plastic tip in the implant surface, and both titanium brush groups flattened the thread profile, while minimal alterations were observed in the GLYC. When compared to the control group, the roughness parameters (Sa) in the buccal aspect increased in the thread area of SCAL, and a minor reduction was observed in the PEEK while in the other groups, these values remained unchanged. In the valley areas, however the RBRU, TNBRU, and GLYC experienced a significant reduction (smoothening) indicating different accessibility of the decontamination protocols to the thread and valley. Similarly, the buccal aspects had more pronounced changes than those in the palatal aspect.
Within the limitations of this in vitro investigation, the tested protocols induced different macroscopic alterations and surface roughness changes that varied in the thread and valley area.
评估五种消毒方案对商业种植体表面形貌和粗糙度的体外变化。
将 72 个具有喷砂酸蚀（SLA）表面的钛种植体放置在龈上 5mm 处。将十二枚种植体分为五组，分别用以下方案进行器械处理：金属刮治器头（SCAL）、热塑刮治器头（PEEK）、圆形钛刷（RBRU）、带钛刷毛的簇状刷（TNBRU）和基于甘氨酸的空气粉末磨料（GLYC）。第六组未处理的种植体作为对照组。使用扫描电子显微镜和共聚焦激光扫描显微镜评估种植体表面的变化。
SCAL 导致种植体表面明显的宏观改变和损伤，PEEK 则在种植体表面残留塑料尖端，两种钛刷组均使螺纹轮廓变平，而 GLYC 则仅观察到微小变化。与对照组相比，SCAL 在颊侧螺纹区域的粗糙度参数（Sa）增加，PEEK 略有减少，而在其他组中，这些值保持不变。然而，在谷地区域，RBRU、TNBRU 和 GLYC 经历了显著的减少（变平滑），表明不同的消毒方案对螺纹和谷的可达性不同。同样，颊侧的变化比腭侧的变化更为明显。
在本体外研究的限制内，所测试的方案引起了不同的宏观改变和表面粗糙度变化，这些变化在螺纹和谷区有所不同。
