The beauty of composites used in dental restorative materials, usually polymers, inorganic particles are associated1-5. These polymers mainly residual monomers, microporosity, and cracks etc7 9 - the release of such property, have some GMA6. Follow-up treatment of these features, mainly related to the dental surface seem to clinics10-12. He also said that either (organically modified ceramic) Ormocers or compomer (polyacid modified composites) may be the source of fluoride released particles13-15.

Composite dental restorative materials, mechanical brushing, grinding, abrasion, erosion, and the processes of micro-fractures, an acid medium16 19 - are or chemical change. Hydrophobicity, an important feature of the hard compound initial water absorption and adhesion of the bacteria affects the oral cavity. Polymer from the oral to the tooth surface hydrophobicity bacteria20 23-27, can affect the adhesion of

Border areas between enamel and filling material breakdown and bacterial decay may have access to a potential recurrence of the reinfection. Are used in other hard surfaces such as dentures, filling materials are covered with a biofilm, biological, usually consisting of host and bacterial factors. Different materials have different chemical and topographical characteristics of the surface and the structure of the general properties of the formation of biofilms and another24-26 play a role in the effects of the differences. Many studies have found that the addition of fluoride content, wettability and adhesion plaque formation of Streptococcus change mutans27-30. However, other authors argue that the presence of fluoride in dental materials characteristics31 change the original content, not 32

Air-liquid-solid contact angle measurement at the point of meeting a famous and surfaces33 wettability of the solid is investigated. Values ​​of surface topography, surface tension, liquid and solid substrate33 surface, depending on the energy of 34, compared to the wetting properties of liquid-solid interface of the contact angle measurement is derived. It has been shown that surface rougher38-35-like drops on a solid surface contact angle. As mentioned earlier, finishing and polishing dental materials, which may impact on the formation and plaques33 bacterial adhesion processes result in differences in surface roughness. Wettability can be considered in case an issue is the presence of fluoride fillers. Last reports36 the release of fluoride, affects the ability to wet the filling material.

The present study various properties of polymers used in dental restorations based on the position involves an investigation of the effects of treatment. Contact angles were measured on one side of the samples. In short, a contact angle goniometer (Rame - Hart Inc., Mountain Lakes, New Jersey, USA) and samples (REM - Hart Inc., Mountain Lakes, New Jersey, USA. Placed) is associated with an image analyzer , and measurements were carried out using water and glycerin. Each sample was subjected to measurement of each angle 10 in the 4 position: standing, right, left right to left horizontally and vertically. A total of 1760 measurements were carried out.

2.1.3. Surface roughness (m) DeterminationThe roughness of all samples with 10 different points in a 211 Surf Test Profilometer (MITUTOYO, Japan) was determined. 2.1.4. 6.8 to 5 ml of deionized water at a pH of fluoride released after 7 days of storage, samples were analyzed on a potentiometer with a solution adjusted with a fluoride electrode with 2.0 ml TISAB (Corning model 125 / 2, USA) (Corning, USA) II .2.1.5. Statistical analysis Contact angle and roughness data were analyzed by ANOVA and Bonferroni multiple comparison test (a = 0.05) were performed with.
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