An analysis of causes of fracture of acrylic resin dentures.

The causes of midline fracture of dentures are discussed in both clinical and materials science terms. Many midline fractures can be avoided by the application of established prosthodontic principles in constructing and maintaining dentures. Improvements in the resins and processing techniques can also reduce the incidence of midline fracture. The most promising approach to preventing or reducing the incidence of this problem appears to be reinforcement in the anterior part of the palate of the denture.