Browsing by Author "Azul, Ana Mano"
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- Abordagem conservadora na restauração de dentes endodonciados – caso clínicoPublication . Caetano, André; Antunes, Maria João; Azul, Ana Mano
- Analysis of laboratory adhesion studies in eroded enamel and dentin : a scoping reviewPublication . Costa, Madalena Belmar da; Delgado, António H. S.; Melo, Teresa Pinheiro de; Amorim, Tomás; Azul, Ana ManoAim: To summarize and report laboratory studies of adhesion in eroded substrates, which used bond strength as an outcome measure. To determine the strategies available to overcome bonding difficulties, the quality and consistency of the methodology and to find evidence gaps. Materials and Methods: The present review followed PRISMA-ScR guidelines. A search was conducted on PubMed/Medline, Scopus and EMBASE (Ovid) databases to identify published peer-reviewed papers (2010–2020). For final qualitative synthesis, 29 articles were selected which respected the inclusion criteria. Data charting was carried out, independently, by two reviewers and quality assessment of the articles was performed. Results: The primary studies included fall into four major categories: comparison of restorative materials and application modes, enzymatic inhibitors, surface pretreatments or remineralization strategies. Most studies found evaluated dentin (76%), while 17% evaluated enamel, and 7% evaluated both substrates. The majority of the studies reported an effective intervention (83%). Bond strength to eroded dentin is significantly reduced, while in enamel erosion is beneficial. The bond strength to eroded dentin is material-dependent and favored in systems containing 10-MDP. Great disparities among the erosion models used were found, with citric acid in different concentrations being the preferred method, although standardization is lacking. Conclusions: Adhesives containing 10-MDP show beneficial results in eroded dentin, and surface preparation methods should be considered. Studies which evaluated adhesion to eroded enamel/dentin show high heterogeneity in what concerns aims and methodology. Strategies that focus on remineralizing dentin and strategies to protect bond longevity in this substrate require further research.
- Antioxidant pre-treatments are able to reduce waiting time for restorative treatment after dental bleaching: a microtensile bond strength exploratory studyPublication . Lobo, Sofia; Santos, Inês Caetano; Delgado, António H. S.; Proença, Luís; Polido, Mário; Azul, Ana Mano; Mendes, José JoãoThe aim was to evaluate the effect of different antioxidant agents on the improvement of bond strength to enamel subjected to a whitening procedure. Samples were divided into six groups (n = 10): control; whitening immediately followed by restorative treatment (WHT); whitening and restoration after a 7-day period (WHT_7D); whitening and application of 10% sodium ascorbate (WHT_SA); application of 5% grape seed extract (WHT_GS); and application of 5% green tea (WHT_GT). All groups except for control fwere whitened (Opalescence PF Regular 16%) for 7 days (4 h/day). All samples were restored (Optibond™ FL, Kerr and Filtek™ Z250 composite, 3M ESPE). In antioxidant groups these were applied for 15 min and immediately restored. Specimens were sectioned in microspecimens (1.0 ± 0.2 mm2 area) for microtensile bond strength (μTBS) testing (0.5 mm/min) on a universal testing machine. ANOVA test with Brown-Forsythe correction and Games-Howell post-hoc test was used (significance level of 5%). Antioxidant groups presented significant higher mean μTBS values than group WHT (p < 0.001). The non-whitened control group was not significantly different to antioxidant experimental groups. Group WHT_7D exhibited a significantly higher mean μTBS value when compared to group WHT (p = 0.022). The different antioxidants significantly influenced microtensile bond strength of restored teeth after whitening.
- Diagnóstico e tratamento de fracturas verticais: a propósito de um caso clínicoPublication . Alves, Gustavo; Laranjo, João; Melancia, Tanya; Azul, Ana Mano; Mendes, José João
- Diferenças na microdureza de resinas compostas de núcleo e convencionaisPublication . Silva, Susana Matias Ferreira da; Moura, Pedro Melo e; Polido, Mário Cruz; Azul, Ana Mano
- Efeito da variação do protocolo adesivo na reparação de uma nanocerâmica/resinaPublication . Madeira, Joana Maria de Oliveira; Monteiro, Paulo; Mendes, José João; Polido, Mário; Azul, Ana Mano
- Estilo de vidaPublication . Azul, Ana Mano
- Formação & (cons)ciênciaPublication . Azul, Ana Mano
- Prevalência de lesões cervicais não cariadas em doentes de uma clínica universitáriaPublication . Antunes, Maria João H.; Mendes, José João; Azul, Ana Mano; Cunha, Joana