[Double blind clinical study of local immunotherapy in treatment of periodontal diseases].

During a 3 weeks period, an immunotherapy by oral route was applied in patients presenting periodontal diseases (gingivitis and chronic adult periodontitis). This study, double blindly conducted, points out a statistically significative decrease of the main clinical symptoms of periodontal diseases (bleeding, erythema, oedema, pain, suppuration, fetidness) without any other local treatment and shows the interest of such a therapy in addition to the classical local treatments applied to patients presenting periodontal diseases.