Application of CAD–CAM Milled Zirconia Attachment in Kennedy’s Class III Partially Dentate Situation: A Series of Clinical Reports

Abstract

Background: Rapid developments of ceramic technology have increased applications of zirconia in dentistry. It is widely used for full, partial coverage crowns, inlays, onlays, post, and core. Though recommended, zirconia has not been widely used as precision attachment to support a cast metal partial denture prosthesis. Aim: The purpose of this clinical report was to use CAD–CAM milled zirconia as an extra coronal attachment to retain a cast metal partial denture prosthesis. Case description: Two partially dentate patient requiring removable prosthesis and anterior fixed dental prosthesis were considered for the study. One piece CAD–CAM milled anterior zirconia bridge with extra-coronal attachment at distal ends was fabricated and metal removable prosthesis was delivered. Patients were followed up periodically for two years. Two year periodic follow up showed application of CAD–CAM milled zirconia attachments to retain metal removable prosthesis was clinically acceptable. Patient reported satisfaction with function and esthetics. Conclusion: Use of CAD–CAM milled zirconia anterior bridge with extracoronal attachment to retain metal removable prosthesis can enhance esthetics with increased patient acceptance.