[Gingival hyperplasia in bar joint prostheses]

The occurrence of mucosal hyperplasias under 57 bars (according to Dolder) was examined. It was found that apart from the time factor, cleaning habits of the patient and the construction of the dentures played an important role. Short bars are more difficult to clean than those with wide distances between the abutments. The influence of additional factors can only be demonstrated in combination with other factors, this suggests rather complex connections.