Publications by authors named "R Geng-Vivanco"
Article Synopsis
- The study investigates how different surface treatments affect the bond strength between resin-modified ceramics and resin cement, highlighting the complications caused by the varied chemical compositions of these materials.
- Researchers tested 16 ceramic slices from various materials with four different surface treatment methods (Control, AlO, HF, AlO+HF) and evaluated the bond strength after 24 hours and after thermocycling through specific tests.
- Results showed that most treatments increased bond strength compared to the control, with AlO+HF achieving the best bond strength in some ceramics, although the performance varied among materials after thermocycling.
Purpose: To evaluate the influence of ChatGPT on academic tasks performed by undergraduate dental students.
Method: Fifty-five participants completed scientific writing assignments. First, ChatGPT was utilized; subsequently, a conventional method involving the search of scientific articles was employed.
Article Synopsis
- The study evaluated how bromelain combined with Biosilicate impacts bond strength (BS) of a universal adhesive to both sound and caries-affected dentin, as well as its effect on proteolytic activity.
- Cavities were prepared in molars and treated with various agents before assessing their bond strength over time, revealing that bromelain improved bond strength in caries-affected dentin after treatment, while also showing lower proteolytic activity.
- Ultimately, the combination of bromelain and Biosilicate did not negatively affect bond strength to sound dentin, suggesting potential benefits for long-lasting adhesive restorations.
This study evaluated the efficacy of incorporating different concentrations of bioactive glass-ceramic (Biosilicate) into coconut oil on the remineralizing potential and surface roughness of white spot lesions. Fragments (6 x 6 x 2mm) of bovine teeth were sectioned and initial microhardness (KHN) and surface roughness (Ra) readings were obtained. The samples were submitted to cariogenic challenge to form white spot lesions and were separated into six groups (n=13): 1) Artificial Saliva (AS); 2) Coconut Oil (CO); 3) CO+2% Biosilicate (CO+2%Bio); 4) CO+5% Biosilicate (CO+5%Bio); 5) 2% Biosilicate Suspension (2% Bio) and 6) 5% Biosilicate Suspension (5% Bio).
View Article and Find Full Text PDFObjective: This study evaluated the effect of bromelain and propolis extract on the bond strength (BS) of a universal adhesive system to eroded dentin.
Materials And Methods: Sixty human molars with exposed dentin were halved, with one half protected by composite resin and the other subjected to erosive treatment followed by remineralization. After the erosive treatment, the composite resin was removed, and the teeth were randomly assigned to three groups (n = 20): Adhesive-Control System; Br-10%; Pr-16%.