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  Indian J Med Microbiol
 

Figure 2: Scanning electron microscope images of remaining smear layer scores at apical level: (a) control group, (b) diode laser, (c) endoActivator, and (d) passive ultrasonic irrigation visualized at ×3000

Figure 2: Scanning electron microscope images of remaining smear layer scores at apical level: (a) control group, (b) diode laser, (c) endoActivator, and (d) passive ultrasonic irrigation visualized at ×3000