Fig. 4. Scanning electron microscope images of titanium surfaces with various experimental conditions showed differences depending upon the given powers. (A) In the control group (A: control), only the traces of mechanical polishing were observed. (B–D) (B: PowerLINE-LP, C: PowerLINE-MP, D: PowerLINE-HP) A mixture of the traces of mechanical polishing and damages induced by various setting powers observed. The damaged trace became more pronounced from low power to high power. LP, lower power; ML, medium power; HP, high power.
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