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Inhibition of bacterial growth on zirconia abutment with a helium cold atmospheric plasma jet treatment.
Clinical Oral Investigations ( IF 3.4 ) Pub Date : 2020-01-15 , DOI: 10.1007/s00784-019-03179-2
Yang Yang 1 , Miao Zheng 2 , Yang Yang 1 , Jing Li 3 , Yong-Fei Su 4 , He-Ping Li 3 , Jian-Guo Tan 1
Affiliation  

OBJECTIVES This study presents a surface modification method to treat the zirconia implant abutment materials using a helium cold atmospheric plasma (CAP) jet in order to evaluate its efficacy on oral bacteria adhesion and growth. MATERIALS AND METHODS Yttrium-Stabilized Zirconia disks were subjected to helium CAP treatment; after the treatment, zirconia surface was evaluated using scanning electron microscopy, a contact angle measuring device, X-ray photoelectron spectroscopy for surface characteristics. The response of Streptococcus mutans and Porphyromonas gingivalis on treated surface was evaluated by a scanning electron microscopy, MTT assay, and LIVE/DEAD staining. The biofilm formation was analyzed using a crystal violet assay. RESULTS After the helium CAP jet treatment, the zirconia surface chemistry has been changed while the surface topography remains unchanged, the bacterial growth was inhibited, and the biofilm forming decreased. As the treatment time increases, the zirconia abutment showed a better bacterial inhibition efficacy. CONCLUSIONS The helium CAP jet surface modification approach can eliminate bacterial growth on zirconia surface with surface chemistry change, while surface topography remained. CLINICAL RELEVANCE Soft tissue seal around dental implant abutment plays a crucial role in maintaining long-term success. However, it is weaker than periodontal barriers and vulnerable to bacterial invasion. CAP has a potential prospect for improving soft tissue seal around the zirconia abutment, therefore providing better esthetics and most of all, prevent peri-implant lesions from happening.

中文翻译:

氦气冷等离子射流处理可抑制氧化锆基台上的细菌生长。

目的本研究提出了一种表面改性方法,以使用氦冷大气等离子体(CAP)射流处理氧化锆植入物基台材料,以评估其对口腔细菌粘附和生长的功效。材料与方法钇稳定的氧化锆圆片经过氦气CAP处理;处理后,使用扫描电子显微镜,接触角测量装置,X射线光电子能谱法评价氧化锆表面的表面特性。通过扫描电子显微镜,MTT测定和LIVE / DEAD染色评估变形链球菌和牙龈卟啉单胞菌在处理表面上的反应。使用结晶紫测定法分析生物膜的形成。结果氦CAP喷射处理后,氧化锆表面化学发生了变化,而表面形貌保持不变,细菌生长受到抑制,生物膜形成减少。随着治疗时间的增加,氧化锆基台表现出更好的抑菌功效。结论氦CAP喷射表面改性方法可消除随表面化学变化而氧化锆表面上的细菌生长,同时保留表面形貌。临床相关性牙种植体基台周围的软组织密封在维持长期成功中起着至关重要的作用。但是,它比牙周屏障薄弱并且容易受到细菌侵袭。CAP在改善氧化锆基台周围的软组织密封方面具有潜在的前景,因此可以提供更好的美学效果,并且最重要的是可以防止种植体周围病变的发生。
更新日期:2020-04-20
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