مدرس المادة
Support is derived from the residual ridge and abutment teeth in the distal extension
RPD. The variation in consistency provides this support and allows some rotational
movements of the free end base towards the soft tissues. Harmful tissue-ward
movements of distal extension under occlusal load are transmitted to the abutment
teeth, resulting in the loosening of these teeth. A rigid connection between the denture
base and supporting teeth must account for base movement without causing tooth or
tissue damage.
تحميل الملف