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• Mick, E
• Markhoff, J
• Mitrovic, A
• Jonitz, A
• Bader, R
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• Mick, E
• Markhoff, J
• Mitrovic, A
• Jonitz, A
• Bader, R
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• Mick, E
• Markhoff, J
• Mitrovic, A
• Jonitz, A
• Bader, R

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Materials 2013, 6(9), 4001-4010; doi:10.3390/ma6094001

Article

New Coating Technique of Ceramic Implants with Different Glass Solder Matrices for Improved Osseointegration-Mechanical Investigations

Enrico Mick ^1,* , Jana Markhoff ¹, Aurica Mitrovic ², Anika Jonitz ¹ and Rainer Bader ¹

¹ Department of Orthopaedics, Research Lab for Biomechanics and Implant Technology, University Medicine Rostock, Doberaner Strasse 142, Rostock 18057, Germany ² ZM Praezisionsdentaltechnik GmbH, Breite Strasse 16, Rostock 18055, Germany

* Author to whom correspondence should be addressed.

Received: 9 July 2013; in revised form: 28 August 2013 / Accepted: 4 September 2013 / Published: 11 September 2013

(This article belongs to the Section Manufacturing Processes and Systems)

Download PDF Full-Text [297 KB, uploaded 11 September 2013 14:14 CEST]

Abstract: Ceramics are a very popular material in dental implant technology due to their tribological properties, their biocompatibility and their esthetic appearance. However, their natural surface structure lacks the ability of proper osseointegration, which constitutes a crucial process for the stability and, thus, the functionality of a bone implant. We investigated the application of a glass solder matrix in three configurations—consisting mainly of SiO₂, Al₂O₃, K₂O and Na₂O to TZP-A ceramic specimens. The corresponding adhesive strength and surface roughness of the coatings on ceramic specimens have been analyzed. Thereby, high adhesive strength (70.3 ± 7.9 MPa) was found for the three different coatings. The obtained roughness (R_z) amounted to 18.24 ± 2.48 µm in average, with significant differences between the glass solder configurations. Furthermore, one configuration was also tested after additional etching which did not lead to significant increase of surface roughness (19.37 ± 1.04 µm) or adhesive strength (57.2 ± 5.8 MPa). In conclusion, coating with glass solder matrix seems to be a promising surface modification technique that may enable direct insertion of ceramic implants in dental and orthopaedic surgery.

Keywords: surface modification; glass solder matrix; ceramic implant; adhesive strength; roughness

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