PDF(Pubmed)
Abstract：
OBJECTIVE: This study was conducted to evaluate the effects of plasma treatment of sandblasted and acid-etched (SLA) titanium implants on surface cleansing and osseointegration in a beagle model.
METHODS: For morphological analysis and XPS analysis, scanning electron microscope and x-ray photoelectron spectroscopy were used to analyze the surface topography and chemical compositions of implant before and after plasma treatment. For this animal experiment, twelve SLA titanium implants were divided into two groups: a control group (untreated implants) and a plasma group (implants treated with plasma). Each group was randomly located in the mandibular bone of the beagle dog (n = 6). After 8 weeks, the beagle dogs were sacrificed, and volumetric analysis and histometric analysis were performed within the region of interest.
RESULTS: In morphological analysis, plasma treatment did not alter the implant surface topography or cause any physical damage. In XPS analysis, the atomic percentage of carbon at the inspection point before the plasma treatment was 34.09%. After the plasma treatment, it was reduced to 18.74%, indicating a 45% reduction in carbon. In volumetric analysis and histometric analysis, the plasma group exhibited relatively higher mean values for new bone volume (NBV), bone to implant contact (BIC), and inter-thread bone density (ITBD) compared to the control group. However, there was no significant difference between the two groups (P > .05).
CONCLUSIONS: Within the limits of this study, plasma treatment effectively eliminated hydrocarbons without changing the implant surface.
METHODS: For morphological analysis and XPS analysis, scanning electron microscope and x-ray photoelectron spectroscopy were used to analyze the surface topography and chemical compositions of implant before and after plasma treatment. For this animal experiment, twelve SLA titanium implants were divided into two groups: a control group (untreated implants) and a plasma group (implants treated with plasma). Each group was randomly located in the mandibular bone of the beagle dog (n = 6). After 8 weeks, the beagle dogs were sacrificed, and volumetric analysis and histometric analysis were performed within the region of interest.
RESULTS: In morphological analysis, plasma treatment did not alter the implant surface topography or cause any physical damage. In XPS analysis, the atomic percentage of carbon at the inspection point before the plasma treatment was 34.09%. After the plasma treatment, it was reduced to 18.74%, indicating a 45% reduction in carbon. In volumetric analysis and histometric analysis, the plasma group exhibited relatively higher mean values for new bone volume (NBV), bone to implant contact (BIC), and inter-thread bone density (ITBD) compared to the control group. However, there was no significant difference between the two groups (P > .05).
CONCLUSIONS: Within the limits of this study, plasma treatment effectively eliminated hydrocarbons without changing the implant surface.
摘要：
目的：进行这项研究是为了评估等离子处理喷砂和酸蚀（SLA）钛植入物对比格犬模型中表面清洁和骨整合的影响。
方法：对于形态学分析和XPS分析，采用扫描电子显微镜和X射线光电子能谱技术分析了等离子体处理前后种植体的表面形貌和化学组成。对于这个动物实验，将12个SLA钛植入物分为两组:对照组(未处理的植入物)和等离子体组(用等离子体处理的植入物)。每组随机定位在比格犬的下颌骨中(n=6)。8周后,小猎犬被牺牲了,在感兴趣区域内进行体积分析和组织测量分析。
结果：在形态学分析中，等离子体处理不会改变植入物表面形貌或造成任何物理损伤。在XPS分析中，等离子体处理前检测点的碳原子百分比为34.09%。等离子体处理后,降至18.74%,表明碳减少了45%。在体积分析和组织学分析中，血浆组表现出相对较高的新骨体积（NBV）的平均值，骨与植入物接触（BIC），与对照组相比，螺纹间骨密度（ITBD）。然而,两组比较差异无统计学意义(P>.05)。
结论：在本研究的范围内，等离子体处理有效地消除碳氢化合物而不改变植入物表面。
方法：对于形态学分析和XPS分析，采用扫描电子显微镜和X射线光电子能谱技术分析了等离子体处理前后种植体的表面形貌和化学组成。对于这个动物实验，将12个SLA钛植入物分为两组:对照组(未处理的植入物)和等离子体组(用等离子体处理的植入物)。每组随机定位在比格犬的下颌骨中(n=6)。8周后,小猎犬被牺牲了,在感兴趣区域内进行体积分析和组织测量分析。
结果：在形态学分析中，等离子体处理不会改变植入物表面形貌或造成任何物理损伤。在XPS分析中，等离子体处理前检测点的碳原子百分比为34.09%。等离子体处理后,降至18.74%,表明碳减少了45%。在体积分析和组织学分析中，血浆组表现出相对较高的新骨体积（NBV）的平均值，骨与植入物接触（BIC），与对照组相比，螺纹间骨密度（ITBD）。然而,两组比较差异无统计学意义(P>.05)。
结论：在本研究的范围内，等离子体处理有效地消除碳氢化合物而不改变植入物表面。
