Indocyanine green doped with chitosan nanoparticles based antimicrobial photodynamic therapy in periodontitis patients: A randomized clinical trial

Figure 4 Control site. A: Pre-operative clinical picture for control site; B: Pre-operative radiograph of control site; C: Customized acrylic stent in control site with baseline parameters recorded pocket probing depth - from gingival margin, relative clinical attachment level - from apical end of the groove made in stent; D: Collection of plaque sample from control site for microbiological evaluation; E: Test result being compared with interpretation chart (BANA-zyme test kit) showing faint blue colour- weakly positive result[27]; F: Ultrasonic scaling being performed at the control site; G: Root planing being performed at the control site; H: Application of laser irradiation at control site.