Author: Dr. Fábio Sene
35-year-old female patient.
Dissatisfaction with the class I amalgam restoration in tooth 37.
After the detailed anamnesis, clinical and radiographic exam, no pathologic alteration was found. During the clinical exam, the presence of an old restoration on tooth 37 made in amalgam was observed
After anesthesia, absolute isolation and prophylaxis with pumice stone and water, the amalgam restoration on tooth 37 was removed. The cavosurface angle was carefully finished and etched with 37% phosphoric acid Condac 37 for 30 seconds, washed abundantly and the whole tooth, enamel and dentin, was dried with air.
Next, a first layer of Ambar Universal APS adhesive was applied actively with Cavibrush. Being it a universal adhesive system, it was applied using the self-etching technique since there is no removal of smear or mineral layer and, consequently, there is no exposition of collagen fibers. Therefore, following the self-etching technique, the dentine may and should be dried with air. Fifteen seconds after the first application, air spray was applied to evaporate the solvent and a second layer was applied in the same way and photoactivated.
Following that, the universal chroma composite Vittra APS Unique was applied in layers (since it is not a bulk-fill type composite) rebuilding the anatomy. This composite is very interesting because, in the beginning, before polymerization, the composite looks opaque and whitish. However, after photoactivation, the composite takes the color of the side walls of the tooth, integrating itself chromatically with the dental structure in a perfect way, allowing for the mimicking and a fantastic esthetic result, in a simple way, with just one composite. This new universal chroma composite came to revolutionize and, above all, simplify and facilitate, with extreme esthetic quality, restorative technique and procedures.
Fig. 1 – Initial image showing the restoration in amalgam.
Fig. 2 – Absolute isolation and removal of the amalgam.
Fig. 3 – Acid etching of the cavosurface enamel with Condac 37% for 30 seconds
Fig. 4a – Use of the Ambar Universal APS adhesive.
Fig. 4b – Application of Ambar Universal APS to dry dentin with the self-etching technique. Note the translucent aspect due to the APS technology.
Fig. 4c – Adhesive applied and photoactivated.
Fig. 5 – Vittra APS Unique universal chroma composite.
Fig. 6a – Application of the Vittra APS Unique composite in layers. Note the whitish opaque color of the composite before photoactivation.
Fig. 6b – Occlusal view of the composite increment and the opaque white color.
Fig. 6c – Detail of the composite rebuilding the cusp.
Fig. 6d – Photoactivation.
Fig. 6e – Note the chromatic integration of the composite after photoactivation. Vittra APS Unique absorbs the color of the side walls of the cavity, mimicking the color of the tooth.
Fig. 6f – Detail of the composite integration after photoactivation.
Fig. 7a – Reconstruction of the mesiolingual cusp.
Fig. 7b – Photoactivation.
Fig. 7c – Chromatic result after photoactivation.
Fig. 8a – Reconstruction of the mesiobuccal cusp.
Fig. 8b – Photoactivation.
Fig. 9a – Chromatic result and reconstruction of the distobuccal cusp. Note the chromatic difference of the composite before and after photoactivation.
Fig. 9b – Photoactivation.
Fig. 10 – Finished restoration. Note the incredible chromatic mimicking of the composite Vittra APS Unique.
Fig. 11 – Result after the polishing of the restoration.
Fig. 12a – Final result after the removal of the isolation. Note how the composite has absorbed the optical characteristics of the dental structure, integrating completely with the tooth, producing a unicolored restoration, with a polychromatic effect.
Fig. 12b – Detail of the anatomy returned and the chromatic integration of the composite.