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KMID : 0362720200580010019
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Journal of the Korean Dental Association
2020 Volume.58 No. 1 p.19 ~ p.26
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The build angle of 3D printing denture base resin on candida albicans adhesion
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Park Su-Jung
Song Young-Gyun
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Abstract
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Purpose: The purpose of this study is to compare the adhesion of Candida albicans according to build angle in 3D printing denture base resin.
Methods: The 3D printing was performed by setting the build angle of the disk type specimen designed by CAD program at 0 degree, 30 degrees, 60 degrees, and 90 degrees. Surface roughness was measured using a non-contact 3D microsurface profiler. The specimens were incubated in Candida albicans suspension for 24 hours. The attached Candida albicans were detached by cell scraper. The suspension of detached C. albicans was serially diluted and plated on Trypticase soy broth. After 48 hours of incubation, total colony forming unit was counted.
Results: There was no significant difference in surface roughness(Sa) between the test groups, but the interlayer boundary was observed. There was no statistically significant difference in total colony forming units of Candida albicans between the test groups.
Conclusion: There was no difference in the average surface roughness and adhesion of Candida albicans between the specimens. It is considered that the setting of the build angle should be set considering the accuracy or strength rather than the roughness of the surface.
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KEYWORD
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Build angle, 3D printing, Candida albicans
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