Daou, Elie E; Özcan, Mutlu; Salameh, Pascale; Al-Haj Husain, Nadin; Salameh, Ziad (2018). Comparison of Adhesion of a Novel Pre-sintered Cobalt-Chromium to Pre-sintered Zirconia and Cast Nickel-Chromium. The journal of contemporary dental practice, 19(7), pp. 816-823. Jaypee Brothers Medical Publishers
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AIM
This study compared the bond strength of pre-sintered Ceramill Sintron to pre-sintered zirconia and cast nickel-chromium (NiCr).
MATERIALS AND METHODS
Specimens (n = 60) (diameter: 15 mm; thickness: 2 mm) were prepared (n = 20/group) (Ceramill Sintron, Ceramill Zi, and Wirobond 99). Disks were layered with vita VM ceramic (4 mm). Specimens were randomly divided into two subgroups. Only one subgroup was thermocycled. Specimens were tested under shear strength. Energy-dispersive X-ray (EDX) mapping was done on one disk of each material before and after ceramic layering.
RESULTS
Failure types were mostly mixed failures. Significant difference was found between the three materials for Y and Z failure types (p-values: 0.032 and 0.010 respectively). Thermocycling had no major effect on the results reported. Considering Fmax (force-inducing bonding failure) registered, significant difference was found between the control group and milled alloys groups. No significant difference was found between Ceramill Sintron and Zi. The EDX mapping showed a net increase in the control group oxide layer, whereas only slight increase and decrease were reported for Zi and Sintron respectively.
CONCLUSION
When compared with cast NiCr, novel Ceramill Sintron has higher bond strength, comparable to Ceramill Zi. Thermocycling had no major effects on the results.
CLINICAL SIGNIFICANCE
Ceramic-alloy bonding is a primary factor in the prosthesis' longevity.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology |
UniBE Contributor: |
Al-Haj Husain, Nadin |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1526-3711 |
Publisher: |
Jaypee Brothers Medical Publishers |
Language: |
English |
Submitter: |
Vanda Kummer |
Date Deposited: |
17 Apr 2019 13:46 |
Last Modified: |
05 Dec 2022 15:24 |
PubMed ID: |
30066685 |
Uncontrolled Keywords: |
Computer-aided design/computer-aided manufacturing Pre-sintered cobalt-chromium Shear bond. |
BORIS DOI: |
10.7892/boris.123991 |
URI: |
https://boris.unibe.ch/id/eprint/123991 |
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