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The efficacy of convenient cleaning methods applicable for customized abutments: an in vitro study

Authors
 Sunjai Kim  ;  Changhun Choi  ;  Yunsu Cha  ;  Jae-Seung Chang 
Citation
 BMC ORAL HEALTH, Vol.21(1) : 78, 2021-02 
Journal Title
BMC ORAL HEALTH
Issue Date
2021-02
MeSH
Computer-Aided Design ; Dental Abutments* ; Humans ; Staphylococcus* ; Titanium
Keywords
Bacteria ; CAD/CAM ; Chlorhexidine ; Foreign bodies ; Implants ; Sterilization ; Titanium
Abstract
Background: The demand for implant dentistry, which includes customized abutments, is increasing. A lot of pollutions are generated on the customized abutment surface following milling procedure. This study evaluated the surface topography and cleanliness of customized abutments after cleaning procedures, which are simply applicable in the dental clinic.

Methods: Thirty computer-aided design and computer-aided manufacturing internal connection type titanium abutments were produced, milled, and randomly divided into 3 groups: steam cleaning (control group), chlorhexidine (CHX) scrubbing (test group 1), and ultrasonic cleaning with CHX solution, acetone, and ethyl alcohol (test group 2). Each group was evaluated using microscopic and microbial analysis.

Results: Foreign bodies were observed on the abutment surfaces in control group and test group 1, but not in test group 2. Bacteria were observed on 40% of the agar plates following steam cleaning; most of the colonies consisted of Bacillus cereus and Staphylococcus warneri. Colony growth was absent following test group 1 and 2.

Conclusion: For customized abutments, cleaning with steam is ineffective. CHX scrubbing effectively eliminates only bacteria. Ultrasonic cleaning with CHX solution, acetone, and ethyl alcohol successfully removes both foreign bodies and bacteria. Thus, the ultrasonic cleaning method is conveniently applicable in the dental clinic for eliminating contamination of the customized abutment surface.
Files in This Item:
T202103273.pdf Download
DOI
10.1186/s12903-021-01436-z
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sun Jai(김선재) ORCID logo https://orcid.org/0000-0002-0828-8008
Chang, Jae-Seung(장재승) ORCID logo https://orcid.org/0000-0002-6532-4773
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/184613
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