College of Medicine and Dentistry, James Cook University, Smithfield, Queensland, Australia.
College of Public Health, Medical and Veterinary Sciences, James Cook University, Smithfield, Queensland, Australia.
Clin Exp Dent Res. 2022 Feb;8(1):313-321. doi: 10.1002/cre2.486. Epub 2021 Oct 2.
To evaluate the effect of routinely used physical decontamination methods on the surface characteristics of zirconia implants and subsequent ability of bacteria to adhere in vitro.
Physical decontamination methods commonly used in peri-implantitis therapy and routine implant maintenance can potentially alter zirconia implant surfaces.
Acid-etched zirconia discs were instrumented with titanium curette (TC), plastic curette, air abrasive device, ultrasonic scaler (US) with stainless steel tip. Following instrumentation, surface topography, and surface elemental composition was analyzed using 3D-laser scanning microscopy and energy-dispersive X-ray spectroscopy, respectively. Subsequently, plaque biofilm was cultured on zirconia discs for 48 h and bacterial adhesion assessed using a turbidity test and scanning electron microscopy.
A significant difference in surface roughness was observed between the US and control group (p < 0.05). The US and TC caused gray surface discolouration on zirconia discs due to deposition of metallic residue as confirmed by X-ray spectroscopy. No significant difference in bacterial adhesion was noted among all treatment groups (p > 0.05).
TC and US with stainless steel tips should be used with caution due to deposition of metallic residue on the surface. Air abrasive devices and plastic curettes caused minimal surface alterations and are, therefore, safer for zirconia implant decontamination.
评估常规使用的物理去污方法对氧化锆种植体表面特性的影响,以及随后细菌体外黏附能力的影响。
在治疗种植体周围炎和常规种植体维护中常用的物理去污方法可能会改变氧化锆种植体表面。
用钛刮治器(TC)、塑料刮治器、空气喷砂设备、带不锈钢尖端的超声洁牙机对酸蚀氧化锆片进行处理。处理后,分别使用三维激光扫描显微镜和能量色散 X 射线光谱仪分析表面形貌和表面元素组成。随后,在氧化锆片上培养菌斑生物膜 48 小时,并通过浊度试验和扫描电子显微镜评估细菌黏附情况。
超声洁牙机组和对照组之间的表面粗糙度有显著差异(p<0.05)。超声洁牙机和 TC 会导致氧化锆片表面出现灰色变色,这是由于金属残留物的沉积,X 射线光谱分析证实了这一点。所有处理组之间的细菌黏附差异均无统计学意义(p>0.05)。
由于表面沉积金属残留物,TC 和带不锈钢尖端的超声洁牙机的使用应谨慎。空气喷砂设备和塑料刮治器对表面的改变最小,因此更安全,适用于氧化锆种植体的去污。