RÉSUMÉ
This report describes the conservative management of a 40-year-old female patient with smooth, eroded facial enamel affecting her maxillary anterior and some posterior teeth. Using conventional enamel bonding, pressed leucite-reinforced laminate veneers were used to restore the length, contour, and esthetics of the maxillary right canine, as well as of the right lateral and both central incisors; at the same time, it was necessary to restore the maxillary left lateral incisor, canine, and first premolar of the same quadrant with all-ceramic crowns of the same material. The patient has been followed for 3 years and demonstrates a good esthetic outcome with no shade discrepancy between the two types of restoration. Apparently, the tooth structure, though eroded, was able to provide an adequate bonding substrate for these adhesive restorations.
Sujet(s)
Couronnes , Collage dentaire , Facettes dentaires , Érosion dentaire/thérapie , Adulte , Femelle , Études de suivi , HumainsRÉSUMÉ
El presente estudio evaluó la rugosidad y pigmentación de dos resinas compuestas nanohíbridas, Tetric EvoCeram (TE) y Ceram X Duo (CD) después del uso de dos técnicas de pulido: de paso único Pogo (P) y múltiples pasos Sof-Lex Discs (S). Sesenta especímenes fueron confeccionados con dimensiones de 7mm x 2mm, subdivididos en grupos (n=10): G1- TE+ P;G2- TE+S; G3- TE control; G4- CD + P;G5- CD + P; G6- CD control. Se realizó la toma de color a través de espectrofotómetro VITA Easyshade y lectura de la rugosidad superficial por el rugosímetro Surf-Corder. Los especímenes fueron inmersos en solución de café soluble por siete días, dejando dos especímenes de cada grupo almacenados en agua destilada durante el periodo del experimento. Después de ese tiempo, se realizó una nueva toma de color de los especímenes y los datos fueron analizados estadísticamente a través del test de Anova y Tukey. Para los dos sistemas de pulido hubo diferencia estadísticamente significante en relación a las dos resinas compuestas (p<0,05). El grupo control presentó superficies más lisas que las demás, mientras que en los especímenes pulidos con sistema Sof-Lex presentaron superficies más lisas que las pulidas con Pogo. Los especímenes pulidos con sistema de "múltiples pasos" obtuvieron valores menores de variación de color (?E*), mientras que las muestras tratadas con tira de poliéster fueron las que más se pigmentaron. Cuando se comparan las dos técnicas de pulido, la técnica de múltiples pasos resultó tener una mayor lisura superficial y menor variación de color.
This study compared two different nanohybrid composite resins, Tetric EvoCam and Ceram X Duo about its roughness and staining, after two polishing techniques, "one step" Pogo and "multiple steps" Sof-Lex Disc. Sixty test-samples were fabricated with dimensions of 7mm x 2mm, divided into groups: (n=10): G1- TE+ P;G2- TE+S; G3- TE control; G4- CD + P;G5- CD + P; G6- CD control. A color check was performed with VITA Easyshade spectrophotometer and a reading of the surface roughness by the Surf-Corder (Kosaka Lab. SE 1700). So, the specimens were immersed in a solution of solved coffee (Nescafe) for seven days, with two specimens of each group stored in distilled water during the study period. After this period, it was performed another color check of the specimens and the data was statistically analyzed by ANOVA and Tukey test. For both polishing systems there was statistically significant differences, on both resin composites (p<0.05). The control group showed smoother surfaces than the others, while that the ones polished with Sof-Lex presented smoother surfaces than the ones polished with the Pogo system. The specimens polished with the "multiple steps" system had lower values of color variation (?E*), while that the specimens treated with polyester strips were the most stained ones. When comparing the two polishing techniques, the technique of "multiples steps" resulted in greater smoothness surface and less color variation.