Microscopical and Chemical Surface Characterization of CAD/CAM Zircona Abutments After Different Cleaning Procedures. A Qualitative Analysis

Overview

Journal J Adv Prosthodont

Specialty Dentistry

Date 2015 May 2

PMID 25932314

Citations 12

Authors

Peter Gehrke

Astrid Tabellion

Carsten Fischer

Affiliations

Soon will be listed here.

Abstract

Purpose: To describe and characterize the surface topography and cleanliness of CAD/CAM manufactured zirconia abutments after steaming and ultrasonic cleaning.

Materials And Methods: A total of 12 ceramic CAD/CAM implant abutments of various manufacturers were produced and randomly divided into two groups of six samples each (control and test group). Four two-piece hybrid abutments and two one-piece abutments made of zirconium-dioxide were assessed per each group. In the control group, cleaning by steam was performed. The test group underwent an ultrasonic cleaning procedure with acetone, ethyl alcohol and antibacterial solution. Groups were subjected to scanning electron microscope (SEM) analysis and Energy-dispersive X-ray spectroscopy (EDX) to verify and characterize contaminant chemical characterization non-quantitatively.

Results: All zirconia CAD/CAM abutments in the present study displayed production-induced wear particles, debris as well as organic and inorganic contaminants. The abutments of the test group showed reduction of surface contamination after undergoing an ultrasonic cleaning procedure. However, an absolute removal of pollutants could not be achieved.

Conclusion: The presence of debris on the transmucosal surface of CAD/CAM zirconia abutments of various manufacturers was confirmed. Within the limits of the study design, the results suggest that a defined ultrasonic cleaning process can be advantageously employed to reduce such debris, thus, supposedly enhancing soft tissue healing. Although the adverse long-term influence of abutment contamination on the biological stability of peri-implant tissues has been evidenced, a standardized and validated polishing and cleaning protocol still has to be implemented.

Citing Articles

Biocompatibility, Surface Morphology, and Bacterial Load of Dental Implant Abutments following Decontamination Protocols: An In-Vitro Study.

Sharon E, Pietrokovski Y, Engel I, Assali R, Houri-Haddad Y, Beyth N Materials (Basel). 2023; 16(11).

PMID: 37297212 PMC: 10254387. DOI: 10.3390/ma16114080.

The integration of peri-implant soft tissues around zirconia abutments: Challenges and strategies.

Tang K, Luo M, Zhou W, Niu L, Chen J, Wang F Bioact Mater. 2023; 27:348-361.

PMID: 37180640 PMC: 10172871. DOI: 10.1016/j.bioactmat.2023.04.009.

Microbiological cleaning and disinfection efficacy of a three-stage ultrasonic processing protocol for CAD-CAM implant abutments.

Gehrke P, Riebe O, Fischer C, Weinhold O, Dhom G, Sader R J Adv Prosthodont. 2022; 14(5):273-284.

PMID: 36452367 PMC: 9672693. DOI: 10.4047/jap.2022.14.5.273.

Biofunctionalization of zirconia with cell-adhesion peptides polydopamine crosslinking for soft tissue engineering: effects on the biological behaviors of human gingival fibroblasts and oral bacteria.

Yang Z, Liu M, Zheng M, Yang Y, Liu X, Tan J RSC Adv. 2022; 10(11):6200-6212.

PMID: 35495985 PMC: 9049673. DOI: 10.1039/c9ra08575k.

The Effect of Different Cleaning Protocols of Polymer-Based Prosthetic Materials on the Behavior of Human Gingival Fibroblasts.

Rutkunas V, Borusevicius R, Liaudanskaite D, Jasinskyte U, Drukteinis S, Bukelskiene V Int J Environ Res Public Health. 2020; 17(21).

PMID: 33114133 PMC: 7660342. DOI: 10.3390/ijerph17217753.

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