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23. Dialyse und Telemedizin

Author

Demarco, F., primary, Quisling, J., additional, Carlson, D., additional, Kleophas, W., additional, and Krishnan, M., additional

Published
2017
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24. Benchmark Models for the Analysis and Control of Small-Signal Oscillatory Dynamics in Power Systems

Author

Canizares, C., primary, Fernandes, T., additional, Geraldi, E., additional, Gerin-Lajoie, L., additional, Gibbard, M., additional, Hiskens, I., additional, Kersulis, J., additional, Kuiava, R., additional, Lima, L., additional, DeMarco, F., additional, Martins, N., additional, Pal, B. C., additional, Piardi, A., additional, Ramos, R., additional, dos Santos, J., additional, Silva, D., additional, Singh, A. K., additional, Tamimi, B., additional, and Vowles, D., additional

Published
2017
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30. Longevity of Anterior Composite Restorations in a General Dental Practice-Based Network.

Author

Collares, K., Opdam, N. J. M., Laske, M., Bronkhorst, E. M., Demarco, F. F., Correa, M. B., and Huysmans, M. C. D. N. J. M.

Subjects
DENTAL fillings, SURVIVAL analysis (Biometry), DENTAL veneers, OPERATIVE dentistry, REGRESSION analysis, AGE distribution, COMPUTER software, DENTAL resins, DENTISTRY, LONGITUDINAL method, COMPLICATIONS of prosthesis
Abstract

This practice-based study investigated the performance of a large set of anterior composite restorations placed by a group of 24 general practices. Based on data from electronic patient files, the longevity of 72,196 composite restorations was analyzed, as placed in 29,855 patients by 47 general dental practitioners between 1996 and 2011. Annual failure rates (AFRs) were calculated, and variables associated with failure were assessed by multivariate Cox regression analysis with shared frailty for 2 age groups (5 to 24 y and ≥25 y). The observation time of restorations varied from 2 wk to 13 y, with a mean of 4.8 y, resulting in a mean AFR of 4.6% (95% confidence interval [95% CI], 4.5% to 4.6%) at 5 y. Among dentists, a relevant variation in clinical performance of restorations was observed, with an AFR between 2% and 11%. The risk for restoration failure increased in individuals up to 12 y old, having a 17% higher risk for failure when compared with the age group of 18 to 25 y (hazard ratio, 1.17; 95% CI, 1.03 to 1.34), and for the age group >65 y, having a 81% higher risk for failure when compared with 25 to 35 y (hazard ratio, 1.81; 95% CI, 1.66 to 1.98). In both multivariate models, there was a difference in longevity of restorations for different teeth in the arch, with fillings in central incisors being the most prone to failure and replacement. It was concluded that anterior composite restorations placed by general dental practitioners showed an adequate clinical performance, with a relevant difference in outcome among operators. [ABSTRACT FROM AUTHOR]

Published
2017
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31. Biodegradable Polymeric Nanocomposite Based on Agar Matrix Modified with Porous Hydroxyapatite or Titanium Dioxide Fillers from Biotemplates Route

Author

Carreno, N. L. V., primary, Duarte, V., additional, Barbosa, A. M, additional, Avellaneda, C. O, additional, Demarco, F. F, additional, Nedel, F., additional, Piva, E., additional, Peralta, S. L., additional, Lund, R. G, additional, Rhodes, R., additional, Sam, F L M, additional, and Silva, S R P, additional

Published
2014
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32. Sugar Consumption and Changes in Dental Caries from Childhood to Adolescence.

Author

Peres, M. A., Sheiham, A., Liu, P., Demarco, F. F., Silva, A. E. R., Assunção, M. C., Menezes, A. M., Barros, F. C., and Peres, K. G.

Subjects
SUGAR, FOOD consumption, DENTAL caries in children, COHORT analysis, TIME-varying systems, LINEAR statistical models, NEGATIVE binomial distribution, DISEASE prevalence, DENTAL fluoride treatment, BREASTFEEDING, CHILDREN'S dental care, DENTAL caries, INCOME, LONGITUDINAL method, RESEARCH funding, TOOTH care & hygiene, EDUCATIONAL attainment, DIETARY sucrose
Abstract

There are no prospective studies investigating the effects of sugar-related feeding practices on changes in dental caries from early childhood to young adulthood. The aim of this study was to assess whether sugar-related feeding practices affect dental caries between the ages of 6 and 18 y. This birth cohort study was initiated in 1993 in Pelotas, Brazil. There were 3 dental clinical assessments; at ages 6 y (n = 359), 12 y (n = 339), and 18 y (n = 307). Sugar-related feeding practices were assessed at ages 4, 15, and 18 y. Covariates included sex and life course variables, such as family income, breast-feeding, mother's education, regularity of dental visit, and child's toothbrushing habits. Group-based trajectory analysis was performed to characterize trajectories of time-varying independent variables that had at least 3 time points. We fitted a generalized linear mixed model assuming negative binomial distribution with log link function on 3-time repeated dental caries assessments. One in 5 participants was classified as "high" sugar consumers, and nearly 40% were "upward consumers." "Low consumers" accounted for >40% of the sample. High and upward sugar consumers had higher dental caries prevalence and mean DMFT in all cohort waves when compared with low sugar consumers. Caries occurred at a relatively constant rate over the period of study, but in all sugar consumption groups, the increment of dental caries was slightly higher between ages 6 and 12 y than between 12 and 18 y. Adjusted analysis showed that dental caries increment ratio between ages 6 and 18 y was 20% and 66% higher in upward and high sugar consumer groups as compared with low consumers. The higher the sugar consumption along the life course, the higher the dental caries increment. Even the low level of sugar consumption was related to dental caries, despite the use of fluoride. [ABSTRACT FROM AUTHOR]

Published
2016
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