[Acrylic denture base materials in dentistry. The influence of immersion of bases on the palatal gap]. / Les matériaux acryliques des bases prothétiques en odontologie. Influence de l'immersion des bases sur le hiatus palatin.

The method of experimental design, we used, is versatile enough to allow the study of immersion in water at 37 degrees C during 15 days after curing, as a new parameter able to influence the deformation of denture bases, without any additional experiment. According to the experimental conditions used to make up denture bases, this parameter can, in some cases, modify appreciably the deviation in the palate region.

[Acrylic materials for denture bases in dentistry. Study of measurement variations and the influence of three new parameters on construction of bases and their deformation]. / Les matériaux acryliques des bases prothétiques en odontologie. Etudes de la variance des mesures et de l'influence de trois nouveaux paramètres d'élaboration des bases sur leur déformation.

A further study of the variance of deviation measurements of denture bases in the palate region shows that the variability of measurements is not essentially due to measuring, but also to the variability of denture processing. No more than the other previously studied parameters, the heating and cooling rates as well as the mode of insertion of resin in the cast have no effect on the dimensional accuracy of denture bases after curing.