The Advantages of Partial Dentures Made of Cast Framework Cr-Co toward those Made of Resin Based Dentures

摘要

Many investigations have shown that the cooperation of the denture design between the dental clinic and laboratory is often inadequate, with many dentists leaving it to the technician to decide the denture design. The aim of this study was to compare the stability of the removable partial dentures, made of cast framework base of Cr-Co toward those from acrylic resin-base. Through this study, we show the importance of a good planning and design of RDP, the evaluation of direct retentions, especially those of clasps and precise attachments for their impact on the longevity of the supporting teeth and tissues in different clinical cases, classified by Kennedy. The removable partial dentures evaluated in the study are either with or without a cast framework. In this study, are taken into observation 65 prostheses from 53 patients (28 maxillary and 37 mandibular) aged 38-70 years old. We have analyzed the type of clasps used and evaluated mobility scale and periodontal and clinical conditions of the abutment teeth in each case. After clinical examination we concluded that the abutment teeth where correct choice of clasp types were applied, had a mobility scale within physiological parameters and overall better clinical conditions compared to the abutment teeth were different type of clasps were used.