Journal of Oral Implantology April 2012 - (Page 149)

CLINICAL Metal-Ceramic Screw-Retained Implant Fixed Partial Denture With Intraoral Luted Framework to Improve Passive Fit Mirza Rustum Baig, MDS1* Rajan Gunaseelan, BDS2 Passive fit of a long-span screw-retained implant prosthesis is an important criteria for the success of the restoration. This article describes a technique for fabricating a ceramometal implant fixed dental prosthesis (FDP) for a long-span partially edentulous situation by altering the conventional screw-retained design. The possibility of a passive fit is maximized by intraoral luting of the cast frame to milled abutments, and the potential framework distortion during fabrication is compensated to a major extent. Retrievability is ensured by screw retention of the prosthesis to the implants. Compared with conventional porcelain fused to metal screw-retained FDP, this prosthesis is relatively inexpensive to fabricate. Key Words: passive fit, fixed retrievable prosthesis, implant-supported FDP, ceramometal, implant prosthesis design, cement- and screw-retention INTRODUCTION he inability to consistently achieve a passive fit with a multiimplant screw-retained fixed ceramometal prosthesis is well documented in literature.1–3 Screwretained implant fixed prostheses have been traditionally advocated because of the ease of retrievability, benefit of splinting, and low profile retention. However, lack of passive fit and distortion of the framework that may result upon firing porcelain at high temperatures remain problem areas.4–6 Cement-retained fixed implant prostheses have the advantages of passively fitting 1 Department of Prosthetic Dentistry, Faculty of Dentistry, University Malaya, Kuala Lumpur, Malaysia; and Department of Prosthodontics, Ragas Dental College and Hospital, Chennai, India. 2 Oral and Maxillofacial Surgery, Rajan Dental Institute, Chennai, India. * Corresponding author, e-mail: DOI: 10.1563/AAID-JOI-D-09-00089 T frameworks and better esthetics.7,8 However, retrievability, repair and maintenance, choice of cement, and excess cement in the sulcus remain areas of concern.9 A combination of screw and cement retention would combine the advantages of both approaches.10 Some earlier reports have discussed the advantages of cement and screw retention for retrievable single-tooth implant restorations11 and 3- to 4-unit FDPs.12,13 Other authors14–17 have presented multiple variations of this technique basically aimed at creating passively fitting frameworks for implant-supported metal-resin fixed dentures.18 This article describes an alternative technique for fabricating a long-span, ceramometal implant FDP with cement and screw retention. CLINICAL REPORT Four dental implants (Nobel Biocare Replace ¨teborg, Select Tapered TiU, NobelBiocare AB, Go Journal of Oral Implantology 149

Table of Contents for the Digital Edition of Journal of Oral Implantology April 2012

Research Letters: A New Editorial Format for the Rapid Disclosure of Innovative Data and Concepts, Didactic Demonstrations, and Scientific Discussions
Effect of Defective Collagen Synthesis on Epithelial Implant Interface: Lathyritic Model in Dogs. An Experimental Preliminary Study
Presence of Aspartate Aminotransferase in Peri-Implant Crevicular Fluid With and Without Mucositis
Deformation of Implant Abutments After Framework Connection Using Strain Gauges
Implant-Retained Mandibular Bar-Supported Overlay Dentures: A Finite Element Stress Analysis of Four Different Bar Heights
The Efficacy of Mylohyoid Nerve Anesthesia in Dental Implant Placement at the Edetulous Posterior Mandibular Ridge
Metal-Ceramic Screw-Retained Implant Fixed Partial Denture With Intraoral Luted Framework to Improve Passive Fit
A Relaxed Implant Bed: Implants Placed After Two Weeks of Osteotomy With Immediate Loading: A One Year Clinical Trial
A Modified Technique for Removing a Failed Abutment Screw From an Implant With a Custom Guide Tube
Therapy for Missing Lower Medial Incisor by Means of Reduced Diameter Implants
Simplifying the Implant Treatment Plan for an Elderly Patient
The Use of Leukocyte- and Platelet-Rich Fibrin During Immediate Postextractive Implantation and Loading for the Esthetic Replacement of a Fractured Maxillary Central Incisor
Atraumatic Removal of an Asymptomatic Migrated Dental Implant Into the Maxillary Sinus: A Case Report
Tooth-Implant Connection: A Review

Journal of Oral Implantology April 2012