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Post silanization improves bond strength of translucent posts to flowable composite resins.
Alberto Albaladejo1, Raquel Osorio, Federica Papacchini
1Department of Dental Materials, Faculty of Dentistry, University of Salamanca, Salamanca, Spain.
Summary
Silanization significantly enhances the microtensile bond strength (MTBS) of translucent fiber posts bonded with flowable composite resins. Treatments with X-flow and Point 4 showed the highest MTBS, indicating improved adhesion for dental restorations.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Restorative Dentistry
Background:
- Fiber posts are widely used in dental restorations.
- Ensuring strong adhesion between posts and core materials is crucial for restoration longevity.
- Flowable composite resins are common choices for core build-ups.
Purpose of the Study:
- To investigate the impact of silanization on the microtensile bond strength (MTBS) of translucent fiber posts.
- To compare the bonding performance of seven different flowable composite resins to silanized and non-silanized fiber posts.
Main Methods:
- Seventy translucent fiber posts were divided into silanized and non-silanized groups.
- Posts were bonded with seven distinct flowable composite resins.
- Microtensile bond strength (MTBS) was evaluated using an Instron machine after sectioning specimens into 1-mm² beams.
Main Results:
- Both the type of composite resin and the silanization procedure significantly affected MTBS.
- Silane treatment consistently increased the MTBS of flowable composite resins to translucent fiber posts.
- X-flow and Point 4 flowable composites demonstrated the highest MTBS, irrespective of silane application.
Conclusions:
- Silanization is an effective surface treatment for improving the bond strength between translucent fiber posts and flowable composite resins.
- Specific flowable composite resins, such as X-flow and Point 4, offer superior bonding performance.
- Optimizing post-composite adhesion is vital for enhancing the durability of dental restorations.
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