Photodynamic Therapy During Supportive Periodontal Therapy

The PDT system consists of a hand-held rechargeable light-emitting diode (LED) light source (Fotosan® 630 device, CMS Dental, Copenhagen, Denmark) and 0.1 mg/mL toluidine blue photosensitiser. The LED light source has a wavelength between 620 to 640 nm and peak of 630 nm and a power density between 2000 to 4000 mW/cm2.

Scaling and root debridement of the residual pockets were performed using ultrasonic device and hand curettes until root surfaces felt hard and smooth. The sites were then polished using rubber cup and prophylaxis paste.