TI: Periodontology: New Methods DT: April 10, 1991 AU: A.W. Brauner Clinic For Conservation, Periodontology and Preventive Dentistry - Dental School Of the RWTH, Aachen, Germany SO: Ozone Science & Engineering Vol. 14, pp. 165-176 AB: In a clinical four-week study, the effect of ozone water was examined exclusively or in combination with professional measures of oral hygiene. A test group with a usual home- care habit of exercising oral hygiene and another group whose teeth were professionally cleaned were taken as control groups. Follow-up examinations were carried out after another four weeks. Complete removal of plaque could be obtained only with professional tooth cleaning. Plaque formation, however, was reduced when applying ozone water, and the inflammatory signs, measured with SBI (Sulcus Bleeding Index) and SFFR (Sulcus Fluid Flow Rate), had disappeared. After discontinuing rinsing applications, we have obtained the values complying with the initial measurements. It has become apparent that rinsing applications are no replacement of mechanical tooth cleaning at all, but they will effect regression of the inflammation. No clinical side-effects could be observed, so that at least short-term ozonized water application seemed to be indicated. In a control study using ultrasonography with rinsing applications of ozone water, the first-mentioned good results were obtained in comparison with the conventional therapy, such as root planing and scaling.