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Published in: Clinical Oral Investigations 4/2020

01-04-2020 | Original Article

Inhibition of bacterial growth on zirconia abutment with a helium cold atmospheric plasma jet treatment

Authors: Yang Yang, Miao Zheng, Yang Yang, Jing Li, Yong-Fei Su, He-Ping Li, Jian-Guo Tan

Published in: Clinical Oral Investigations | Issue 4/2020

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Abstract

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.
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Metadata
Title
Inhibition of bacterial growth on zirconia abutment with a helium cold atmospheric plasma jet treatment
Authors
Yang Yang
Miao Zheng
Yang Yang
Jing Li
Yong-Fei Su
He-Ping Li
Jian-Guo Tan
Publication date
01-04-2020
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 4/2020
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-019-03179-2

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