Effect of TiF varnish on microbiological changes and caries prevention: in situ and in vivo models.

Objective: The aim of this study was to evaluate microbiological changes, oral soft tissue toxicity, and caries-preventive effect of an experimental titanium tetrafluoride (TiF) varnish compared with a commercially available fluoride varnish (NaF), using in situ and in vivo models.

Materials And Methods: The treatment groups were the following: TiF varnish (experimental varnish), Duraphat® (fluoride positive control), placebo varnish (no fluoride), and no treatment (negative control). The varnishes were applied once over the enamel surface using a microbrush.

In situ effect of titanium tetrafluoride varnish on enamel demineralization.

The effect of a 4% titanium tetrafluoride (TiF 4 ) varnish on enamel demineralization was evaluated. Twelve volunteers participated in this double-blind, randomized crossover study. Six enamel specimens were positioned in intraoral appliances throughout four treatment stages: 4% TiF 4 varnish (experimental varnish), 5% sodium fluoride (NaF) varnish (Duraphat ® ), placebo varnish, and negative control (deionized water).

[Financing in Brazilian health care system: a recent retrospective and dentistry approach].

The guided policies designed to modify the health care system occurred in three stages: the first occurred at the end of the military regimen with the implantation of the Integrated Actions of Health (AIS); the second came with the implantation of the Unified and Decentralized Health System (SUDS) in 1987; and the third was the promulgation of the Constitution in 1988, when the Brazilian Unified Health System (SUS), an organizational structure based on principles of citizenship and social justice, was then created. With the creation of SUS, there was the need for defining objectives and strategic lines of direction for the decentralization process, concerning responsibility aspects, relations among managers, and criteria of transference from federal to state and municipal levels. Thus, the objective of this study was to accomplish a recent retrospective of the budgetary plan aimed at health care, with an approach on dental care.

TiF(4) varnish-A (19)F-NMR stability study and enamel reactivity evaluation.

The aim of this study was to develop a titanium tetrafluoride (TiF(4)) varnish and evaluate the stability of the formulation and its reactivity with dental enamel. The varnish was prepared in a resinous matrix using ethanol 96% as solvent. Samples (n=45) were aged at 65 degrees C and 30% of relativity humidity (RE n degrees 01/05-ANVISA) and after 3, 6, 9 and 12 months, nine samples were removed for evaluation and compared with fresh samples.