Coating of Sandblasted and Acid-Etched Dental Implants With Tantalum Using Vacuum Plasma Spraying

Xian Zhou; Xiulian Hu; Ye Lin

doi:10.1097/ID.0000000000000727

Coating of Sandblasted and Acid-Etched Dental Implants With Tantalum Using Vacuum Plasma Spraying

Implant Dent. 2018 Apr;27(2):202-208. doi: 10.1097/ID.0000000000000727.

Authors

Xian Zhou¹, Xiulian Hu², Ye Lin³

Affiliations

¹ Master Degree Candidate, Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.
² Associate Professor, Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, China.
³ Professor, Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, China.

PMID: 29394178
DOI: 10.1097/ID.0000000000000727

Abstract

Purpose: The objective was to prepare tantalum (Ta)-coated sandblasted and acid-etched (SLA) dental implants using vacuum plasma spraying (VPS) and to analyze their morphologies.

Materials and methods: Twelve SLA implants were coated with Ta using VPS. The topographies of the coatings and Ta/SLA surface interfaces were examined using scanning electron microscopy. The thickness at 4 locations for 6 Ta-coated and 6 uncoated SLA implants and pore sizes of the neck, central, and root areas of Ta-coated implants were measured. SPSS v20.0 was used for statistical analysis.

Results: The Ta coatings were rough and consisted of pitted structures with various pore sizes; no cracks were observed. The Ta/SLA surface interface was tightly bonded. The 95% confidence interval of the Ta coating thickness was (114.0759, 129.3574). The maximal pore diameter was concentrated at 200 to 400 nm.

Conclusion: SLA dental implants were successfully coated with Ta using VPS. The nanoporous structure of these implants may facilitate osseointegration compared with uncoated SLA implants.