Repair bond strength of composite resin to zirconia restorations after different thermal cycles
| Autor: | Serkan Çınar, Omer Kirmali |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Repair bond strength
Materials science medicine.medical_treatment 0206 medical engineering Composite number 02 engineering and technology Temperature cycling 03 medical and health sciences Composite resin 0302 clinical medicine medicine Dentistry (miscellaneous) Cubic zirconia Ceramic Composite material Porcelain repaire systems Universal testing machine Bond strength Thermal cycling 030206 dentistry 020601 biomedical engineering visual_art visual_art.visual_art_medium Original Article Veneer Adhesive Oral Surgery Zircornia |
| Zdroj: | The Journal of Advanced Prosthodontics |
| ISSN: | 2005-7814 2005-7806 |
| DOI: | 10.4047/jap.2019.11.5.297 |
| Popis: | PURPOSE This in vitro study investigated the repair bond strength of the zirconia ceramic after different aging conditions. MATERIALS AND METHODS In order to imitate the failure modes of veneered zirconia restorations, veneer ceramic, zirconia, and veneer ceramic-zirconia specimens were prepared and were divided into 4 subgroups as: control (37℃ distilled water for 24 hours ) and 3000, 6000, 12000 thermal cycling groups (n=15). Then, specimens were bonded to composite resin using a porcelain repair kit according to the manufacturer recommendation. The repair bond strength (RBS) test was performed using a universal testing machine (0.5 mm/min). Failure types were analyzed under a stereomicroscope. Two-way ANOVA and Bonferroni test were used for statistical analysis. RESULTS The RBS values of zirconia specimens were statistically significant and higher than veneer ceramic and veneer ceramic-zirconia specimens in control, 3000 and 6000 thermal cycling groups (P.05). Veneer ceramic specimens exhibited cohesive failure types, zirconia specimens exhibited adhesive failure types, and veneer ceramic-zirconia specimens exhibited predominately mixed failure types. CONCLUSION Thermal cycling can adversely affect RBS of composite resin bınded to level of fractured zirconia ceramics. |
| Databáze: | OpenAIRE |
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