The effect of aging on composite-to-composite repair strength

PhD ceremony: Ms. M. Rinastiti, 16.15 uur, Academiegebouw, Broerstraat 5, Groningen

Thesis: The effect of aging on composite-to-composite repair strength

Promotor(s): prof. H.J. Busscher, prof. M. Ozcan, prof. W. Siswomihardjo, prof. H.C. van der Mei

Faculty: Medical Sciences

The development of new aesthetic materials enables the dentist to treat patients based on the concept of minimal invasive dentistry. The concept of minimal invasive dentistry, which involves preservation of tooth structure by repair of existing restorations through relayering (composite-to-composite-bonding). Improvements of composite resins and problems occurring in composite restorations due to the influence of dynamic oral conditions are described. A composite restoration ages over time and failure frequently occurs. The success of relayering depends on the strength of composite-to-composite bonding. The first aim of this study was to find the best model for simulating intra-oral aging of composite resins. The second aim was to determine the best possible conditioning method for composite-to-composite repair based on the bond strength analyses.