Equipment
Ozotop (TTT, Switzerland) an ozone generator that was available in the author’s practice was used (Serial Number: 0307/2006) as shown in Figure 1. This generator uses a corona discharge system and it produces 30 mg ozone per hour. There are three different tips for the oral cavity and the periotip was used for the periodontal treatment. The generator has no built-in scavenging system so suction with the special accessory for ozone mouth evacuation (Ozodam, TTT Switzerland) was used, according to manufacturer instructions. Suction with Ozodam was positioned close to the periotip in order to minimize the concentration of ozone in the mouth as this approach increases the safety of ozone use [18].