title: [Follow-up studies on model cast prostheses after 4 years wear].
abstract: Over a period of 4-1/2 years, patients having model cast dentures that had been inserted in the dental office were checked and submitted to follow-ups. It became evident that the socalled pre-prosthetical measures had been performed in a non-satisfying manner. In 69% of the patients, teeth had been extracted directly before inserting the model cast denture. As a result thereof, a majority of the dentures was sagging after a relatively short time and 70% of the dentures revealed non-occlusion in the final follow-up. 47% of the dentures had to be modified because of necessary tooth extractions, thereby reducing the original number of abutment teeth by 19%. About a third of the inserted model cast dentures showed gross deficiences, the percentage of socalled "collar" constructions was relatively high.
mesh_terms: D003735:Dental Casting Technique; D003823:Denture Rebasing; D003778:Dentures / Q000592:standards*; D005500:Follow-Up Studies; D006801:Humans
vernacular_title: Nachuntersuchungen von Modellgussprothesen nach vierjähriger Tragezeit