The Bond Strength of Orthodontic Resins to Porcelain
Orthodontic brackets were bonded to one of two porcelain surfaces using a self-cured or one of two light-activated orthodontic bonding resins. The porcelain surfaces were either glazed (control) or de-glazed (experimental) by being subjected to either 1.23% APF for 4 minutes or roughened with a Busc...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
1993-10-01
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| Series: | Australasian Orthodontic Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/aoj-1993-0019 |
| Summary: | Orthodontic brackets were bonded to one of two porcelain surfaces using a self-cured or one of two light-activated orthodontic bonding resins. The porcelain surfaces were either glazed (control) or de-glazed (experimental) by being subjected to either 1.23% APF for 4 minutes or roughened with a Busch silent wheel. The bonds were tested to failure in shear mode on a universal mechanical testing machine. For one porcelain, there was no significant difference in the mean bond strengths between the control and the APF-treated surface, but for the second porcelain the mean bond strength was significantly greater when the surface was de-glazed by abrasion. It is considered that the mean bond strengths may be inadequate to withstand manipulations associated with routine orthodontic therapy. |
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| ISSN: | 2207-7480 |