Evaluation of Halitosis After Treatment With Photodynamic Therapy

"G1-40 patients Photodynamic therapy with methylene blue as photosensitizer~device irradiation with low intensity laser (wave length = 660 nm) 9J (Jaules) per point(6 points) and radiant 90 seconds PS will be applied in sufficient quantity to cover the middle third and back of the tongue and wait for 5 minutes.six points with the distances of 1 cm between them will be irradiated."

Tongue scrapping will be performed by the same operator in all patients. Posterior -anterior movements will be performed with the scrapper over the lingual dorsum. in order to promote the mechanical removal of tongue coating