IADR Abstract Archives
Clinical outcome of a diamond versus a SiC and Al2O3 polishing system for aproximal tooth restaurations.
Objectives: A smooth surface after the direct approximal restoration is of clinical importance, because is located in the interdental space. Finishing and polishing quality depends from the preparation design, filling material, finishing - polishing techniques and systems. It was the aim of this preliminary study to investigate two different finishing and polishing systems: a diamond versus a SiC and Al2O3 system.
Methods: Of 10 extracted caries free human molars approximal slot preparations on the distal and mesial surfaces were made. They were divided in two groups, group 1 for diamond (n=5) and group 2 for SiC and Al2O3 (n=5) application of finishing and polishing systems. Fillings were made with composites Venus Diamond flow and universal Venus Diamond (Heraus Kulzer, GmbH, Hanau, Germany), finished and polished with Intensiv Diamond Strips (Intesiv SA, Grancia, Switzerland) and Super-Snap Polystrips (SHOFU DENTAL GmbH, Ratingen, Germany). The time of treatment was determined. A tactile control with a dental explorer. has been carried out. After finishing and polishing of each specimen 5 surface areas of the filling and enamel selected randomly and the surface roughness was determined as mean area roughness (Sa). The height difference between the surfaces of the filling and enamel (HDFE) in the area of the approximal marginal gap after finishing and polishing was measured. The data were compared statistically using the non-parametric Wilcoxon-Mann-Whitney U test.
Results: No significant difference in the time of treatment (120 ± 10 seconds) and HDFE (group 1 median: 1.59, interquartile range: 4.81; group 2 median: 4.44, interquartile range 13.60) was determined after finishing and polishing with both systems. The enamel surface was significantly smoother after treatment with the diamond system, because the Sa values revealed a significant difference (p=0.024).
Conclusions: Both systems may be used for finishing and polishing of the approximal composite fillings.
Methods: Of 10 extracted caries free human molars approximal slot preparations on the distal and mesial surfaces were made. They were divided in two groups, group 1 for diamond (n=5) and group 2 for SiC and Al2O3 (n=5) application of finishing and polishing systems. Fillings were made with composites Venus Diamond flow and universal Venus Diamond (Heraus Kulzer, GmbH, Hanau, Germany), finished and polished with Intensiv Diamond Strips (Intesiv SA, Grancia, Switzerland) and Super-Snap Polystrips (SHOFU DENTAL GmbH, Ratingen, Germany). The time of treatment was determined. A tactile control with a dental explorer. has been carried out. After finishing and polishing of each specimen 5 surface areas of the filling and enamel selected randomly and the surface roughness was determined as mean area roughness (Sa). The height difference between the surfaces of the filling and enamel (HDFE) in the area of the approximal marginal gap after finishing and polishing was measured. The data were compared statistically using the non-parametric Wilcoxon-Mann-Whitney U test.
Results: No significant difference in the time of treatment (120 ± 10 seconds) and HDFE (group 1 median: 1.59, interquartile range: 4.81; group 2 median: 4.44, interquartile range 13.60) was determined after finishing and polishing with both systems. The enamel surface was significantly smoother after treatment with the diamond system, because the Sa values revealed a significant difference (p=0.024).
Conclusions: Both systems may be used for finishing and polishing of the approximal composite fillings.