Kellerhoff, Rolf; Fischer, Jens (2007). Ceramic bonding to a machined Au-Ti alloy. Quintessence international, 38(10), pp. 867-872. Berlin: Quintessenz Verlags-GmbH
Full text not available from this repository. (Request a copy)Objective: To assess in vitro the bond strength of a machined surface of a Au-Ti alloy to a veneering ceramic. Method and Materials: Metal strips of the alloy Au 1.7-Ti 0.1-Ir were milled from a semiproduct fabricated by continuous casting and cold forming. For comparison, the same alloy as well as a traditional Au-Pt-Pd-In alloy were used in the as-cast state. Six samples of each group were fabricated for the crack initiation test, according to ISO 9693:1999, by preparing appropriate metal strips that were veneered with ceramic using a standard firing procedure. The crack initiation test was performed in a universal testing machine. Load at fracture was recorded. Means of bond strength were calculated for each group and the results compared by use of a 1-sided Student t test (P < .05). Fracture sites were documented by means of SEM. Results: Bond strength in the 3 groups was in the same order of magnitude. Failure mode was different for both alloys. Failure of the bonding to the Au-Ti alloy predominantly occurred at the alloy-oxide interface, no matter which fabrication process was used. On the Au-Pt-Pd-In alloy, more ceramic residues were observed. Conclusion: The machined alloy Au 1.7-Ti 0.1-Ir provides sufficient bond strength to veneering ceramics, but this has to be proven by a clinical study. (Quintessence Int 2007;38:867-872).
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Prosthodontics [discontinued] 04 Faculty of Medicine > School of Dental Medicine > Division of Fixed Prosthodontics [discontinued] |
UniBE Contributor: |
Kellerhoff, Rolf, Fischer, Jens |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
0033-6572 |
Publisher: |
Quintessenz Verlags-GmbH |
Language: |
English |
Submitter: |
Eveline Carmen Schuler |
Date Deposited: |
04 Oct 2013 14:55 |
Last Modified: |
05 Dec 2022 14:17 |
PubMed ID: |
18197327 |
Web of Science ID: |
000254384800010 |
URI: |
https://boris.unibe.ch/id/eprint/23575 (FactScience: 42576) |
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