| Autor: |
Dr Alexander Behlau, Dr.rer.nat. Isabelle Behlau, Dr.techn. Thomas Schmid, Prof. Michael Payer, Dr.rer.nat Gerd Leitinger, Dr.med.dent. Katharina Hanscho, Dr.med.dent. Lumnije Kqiku-Biblekaj, Prof.Karl Glockner |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
International Dental Journal, Vol 73, Iss , Pp S11-S12 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
0020-6539 |
| DOI: |
10.1016/j.identj.2023.07.211 |
| Popis: |
Aim or Purpose: Due to the need of the investigation of the longevity of amalgam-replacement materials since the Minamata Convention, the aim of the present study was to investigate the influence of different finishing methods for varying amalgam-replacement materials on surface roughness over time. Materials and Methods: In the present in-vitro study standardized metal printed molds were filled with the following glass-ionomer-cements: DeltaFil, Equia Forte HT, IonoStar Molar and Ketac Universal and the alkasite Cention Forte. Surface roughness (Sa) of the samples (n=300) was analysed with a noncontact profilometer (InfiniteFocus, Bruker Alicona) at three time points: (1) after finishing, (2) after 30 days and (3) after an aging simulation using thermocycling. Different finishing methods (n=10 per group) were compared: (A) without finishing (control group), (B) arkansas bur, (2) diamond bur, (3) tungsten carbide bur, (4) SofLex discs in descending grit size and (5) coarse SofLex discs in combination with a silicone polisher. Results: DeltaFil was the only filling material with a stable smooth surface over time. Conventional glass-ionomer-cements and hybrid glass-ionomer cements showed smoother surfaces than high-viscosity glass-ionomer-cements. While conventional glass-ionomer-cements had the smoothest surfaces using tungsten carbide bur, alkasite was smoothest using SofLex discs. Conclusions: Our results support the assumption that it makes a huge difference which finishing is used with which filling material, thus giving hints for practitioners. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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