Barely Significant

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showed a trendp = 0.69213.8× alpha
Overall Vertical Height Changes (Point 1) The mean vertical height of the zenith point (point 1) showed a trend to negatively change slightly ( p = 0.692) from baseline to 6 months of −0.48 mm (±0.52), which corresponds to a recession of the mucosal margin of 0.48 mm.
With the increase of Cl − concentration, the corrosion rate shows a trend of increasing and then decreasing, which in Cl − concentration less than 10,000 mg/L, with the increase of Cl − concentration, the corrosion rate increases, while in Cl − concentration higher than 10,000 mg/L, the corrosion rate shows a decreasing trend; this is because with the increase of Cl − concentration, O content will be reduced, thus hindering the corrosion process.
The size and SDAS of the dendritic structure at positions S 1 , 1 x y to S 1 , 7 x y and S 2 , 1 x y to S 2 , 7 x y show an increasing trend; from the principles of solidification, it can be inferred that during the melting and casting processes, positions S 1 , 1 x y and S 2 , 1 x y are close to the mold wall and their heat diffuses rapidly outward, promoting a corresponding faster cooling rate.