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This two-part series provides a comprehensive guide to fabricating definitive metal partial dentures, addressing the challenges dental practitioners face in mastering prosthesis design. It aims to equip dental professionals with a thorough understanding of the theoretical foundations and clinical methods for effective metal partial denture fabrication. Part 2 covers removable partial denture (RPD) design philosophies, tooth preparation, secondary impressions, laboratory procedures, trial and final insertions, as well as post-insertion complications and their management. Additionally, four case scenarios are included to help readers apply the knowledge gained from both parts to design a metal partial denture.
CPD/Clinical Relevance: This series provides essential knowledge and practical techniques for designing and fabricating effective metal partial dentures.
Article
Part 1 of this series explored key elements, including indications, success factors, design principles, surveying techniques, workflow for fabrication and decision algorithms for metal partial dentures. In this part of the series, various philosophies of removable partial denture (RPD) designing, tooth preparation, secondary impressions, laboratory prescriptions, laboratory procedures, trial insertion and final insertion of RPDs are discussed.
The authors have presented hypothetical case scenarios for readers to solve, offering an opportunity to apply and practise the design concepts learned in the two parts of this article series. The four case studies can be found below.
When designing a tooth tissue-supported prosthesis, there are diverse theories guiding the allocation of support between the edentulous ridge and remaining teeth. These are stress equalization, physiological basing and broad stress distribution.1,2 Stress equalization suggests using the resilient mucosa as a cushion, incorporating stress reducing features to transfer loads from abutment teeth to the edentulous ridge. Physiological basing relies on mucosal resilience, emphasizing equalization using impression techniques to record the anatomy under function. Broad stress distribution aims for rigidity in the partial denture framework, using connectors, rests, clasp assemblies, and coverage to minimize strain on abutment teeth. Combining these philosophies ensures an optimal balance between stability, comfort, and preservation of the oral tissues.1,2
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