[The results of treating periapical periodontitis with ultraviolet irradiation of the root canal and the use of gentamycin].

Intracanal UV irradiation combined with the use of gentamycin 0.1% solution was tried in the treatment of 151 teeth diagnosed as acute and exacerbated chronic periodontitis. The method reduces duration of the course of treatment 1.6-fold as compared to conventional drug therapy, ensuring a favourable outcome of treatment in 90% of observations. Besides, this treatment option is well tolerated by the patients; it is harm-free, with no contraindications being known.