[Comparative clinical studies on 2 toothbrushing methods--Roll and Bass technic].

The effectiveness of two tooth cleaning methods (Roll and Bass technique) was evaluated in 28 patients. Answers to the following questions were sought: 1. Which of the two methods results in greater reduction of plaque formation? 2. Are difficulties encountered in the learning and practice of each method? 3. Which method gives better results in the less accessible parts of the jaws? A significant difference in the cleaning effectiveness of the two methods could not be demonstrated.