Dataset Information

Road polishing: High-resolution textures dataset of three mosaics made of different aggregates at different polishing stages.

ABSTRACT: This database is composed of topographies of three mosaics of three different aggregates at three different polishing stages. Each topography is in two different formats: "sur" and "txt". The "txt" format is composed of 15 parallel profiles separated by 0.5 mm. Each profile has a length of 76 mm. Every two points of the profile are separated by 0.01 mm. The three circular mosaics of 22.5 cm in diameter are made from three different aggregates: Limestone, Basalt, and Granite. They have been prepared by placing the 7.2-10 mm size fraction of the aggregates in a single layer as closely as possible, with their flattest faces lying on the bottom of a mold, and then filling the mold with a resin. The polishing process is made using the dedicated head of the Wehner-Schulze machine. The polishing head contains three rubber cones mounted on a rotary disc. It is the loaded and rolling action of these three cones on the pavement surface that produce the effect of polishing. To accelerate the polishing, a mix of 5% quartz powder in 95% water is sprinkled during the rotations of the cones. Texture has been captured using a laser scanning profilometer before, and after 90,000 and then 180,000 cycles of polishing. The measuring area is located inside the polished ring of the pavement.

SUBMITTER: Kane M

PROVIDER: S-EPMC9508496 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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Road polishing: High-resolution textures dataset of three mosaics made of different aggregates at different polishing stages.

Kane Malal M

Data in brief 20220912

This database is composed of topographies of three mosaics of three different aggregates at three different polishing stages. Each topography is in two different formats: "sur" and "txt". The "txt" format is composed of 15 parallel profiles separated by 0.5 mm. Each profile has a length of 76 mm. Every two points of the profile are separated by 0.01 mm. The three circular mosaics of 22.5 cm in diameter are made from three different aggregates: Limestone, Basalt, and Granite. They have been prepa ...[more]

PMID: 36164298

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Project description:BACKGROUND:Increased composite roughness enhances bacterial adhesion and discoloration, thus increasing the risk of gingival inflammation and secondary caries. Concerns about detrimental effects of sodium bicarbonate on surface roughness influenced the development of less abrasive powders: a glycine-based powder and an erythritol-based powder, additionally - sodium bicarbonate-based powder of reduced grain size. However, there is limited evidence on effects of these materials on the surface of dental fillings. The aim of the present study was to compare the effects of three air-polishing powders (of a reduced abrasiveness) on surface roughness of microhybrid restorative composite material. MATERIAL AND METHODS:Microhybrid light-cure resin composite samples were placed on 64 plaster cubes and light-cured through polyester strips. Surface roughness was measured using laser confocal microscope (magnification 2160x). The specimens were randomly divided into three groups (n = 20, 20 and 24) and air-polished with: sodium bicarbonate (40 μm), glycine (25 μm) and erythritol (14 μm), respectively. Then surface roughness was remeasured, keeping the same field of observation. Specialized 3D analysis software was used for data processing. Parameters according to ISO 25178: Sa, Sq, Sku, Sp, Sv, Sz, Ssk were used to describe surface roughness. RESULTS:Sa, Sq, Sp, Sv, Sz increased significantly following air polishing. Ssk was significantly higher, whereas Sku was significantly lower in sodium bicarbonate and erythritol groups than before air polishing. Comparison between the three powders revealed that Sa was significantly higher in sodium bicarbonate group than in glycine group. Sku was significantly higher in glycine and erythritol groups than in sodium bicarbonate group. CONCLUSIONS:Sodium bicarbonate has a stronger detrimental effect on composite surface than glycine or erythritol. No advantage of erythritol comparing to glycine could be found.

Dataset Information

Road polishing: High-resolution textures dataset of three mosaics made of different aggregates at different polishing stages.

Publications

Road polishing: High-resolution textures dataset of three mosaics made of different aggregates at different polishing stages.

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