07 December 2020

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The use one-shade resin composite: two clinical cases

Allegra Comba

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Multi-chromatic restorations, which require the combination of different shade together, can be complex and difficult to use and, if the materials are not used correctly, the final esthetic result could be compromised.

The present comment describes two cases of direct posterior element reconstructions solved with a universal composite resin, VenusOne (Kultzer, Germany), to recreate the amount of tissue lost due to a primary carious process.

After a careful examination, a diagnosis of distal carious lesion was made on 3.5 and 3.6 (Fig. 1 a, Fig. 2 a). In order to obtain a correct isolation of the operative field, the rubber dam was positioned on the third quadrant and the carious lesions on both dental elements were removed (fig. 1 b-c, fig. 2 b).

Once completed the removal of the dental tissue affected by caries, a sectional matrix, a wooden wedge and a ring were placed on both elements and the adhesive procedures were carried out using a universal adhesive (iBond, Kultzer, Germany) in a self-etch mode, with pre-etching of the enamel for 15 seconds (fig. 1 d, fig. 2 c-e).

The interproximal wall was then reconstructed on element 3.5 and the reconstruction was completed, using an oblique layering technique, with the universal composite VenusOne Pearl (Kultzer, Germany), while on element 3.7 the reconstruction was carried out with the universal composite VenusOne Diamond (Kultzer, Germany) (fig. 1 and f, fig. 2 f-h). The restorations were then polished and an occlusal check was conducted to ensure correct function (fig. 1 g, fig. 2 i-j).

Both materials, although presenting overlapping chromatic characteristics (fig. 1 g, fig. 2 j), have a different consistency. VenusOne Diamond, indeed, has a compact consistency that allows easy processing during the creation of the occlusal anatomy and the design of the grooves. VenusOne Pearl, on the contrary, has a creamier consistency, which helps the adaptation to the cavity bottom and the compaction of the material inside the cavity.

The use of materials that allow a simplified procedure for the choice of the color are particularly suitable in the posterior area, where the light does not directly strike the dental element, highlighting the characteristics of translucency and opacity of the dental substrate and where the restorations become practically invisible as they integrate perfectly with the surrounding dentition.