[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.14368/jdras.2014.30.1.71

Maxillary cement retained implant supported fixed prosthesis using the millingable Pd-Ag alloy generated by CAD/CAM system: clinical report after two years in service

Lee, Jun-Sik (Department of Prosthodontics, College of Dentistry, Dankook University)
Han, Se-Jin (Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University)
Choi, Yu-Sung (Department of Prosthodontics, College of Dentistry, Dankook University)

Publication Information

Journal of Dental Rehabilitation and Applied Science / v.30, no.1, 2014 , pp. 71-80 More about this Journal

Abstract

Full-mouth reconstruction of a patient using dental implants is a challenge if there is vertical and horizontal bone resorption. Therefore, it is should be cautious in making the fixed prostheses that restore the function and the esthetics of the gingiva and teeth. In full mouth rehabilitation, CAD/CAM system makes it possible to fabricate restorations with high precision, regardless of span of the restoration. Recently, Palladium-silver (Pd-Ag) alloy which is highly biocompatible and millingable has been developed to compensate for the shortcomings of the titanium or zirconia. This clinical report presents the reconstruction of a maxillary arch with a cement retained implant supported fixed prosthesis using a Pd-Ag alloy generated by CAD/CAM system on eleven osseointegrated implants. The occluding surfaces were made of Pd-Ag alloy, to decrease the risk of chipping or fracture. The prostheses were esthetically pleasing, and no clinical complications have been reported after two years.

Keywords

Pd-Ag alloy; CAD/CAM system; cement-retained prosthesis; implant supported prosthesis;

Citations & Related Records

Reference

1	Gilbert JL, Covey DA, Lautenschlager EP. Bond characteristics of porcelain fused to milled titanium. Dent Mater 1994;10:134-40. DOI ScienceOn
2	Reich S, Wichmann M, Nkenke E, Proeschel P. Clinical fit of all-ceramic three-unit fixed partial dentures, generated with three different CAD/CAM systems. Eur J Oral Sci 2005;113:174-9. DOI ScienceOn
3	Bachhav VC, Aras MA. Zirconia-based fixed partial dentures: a clinical review. Quintessence Int 2011;42:173-82.
4	Huget EF, Civjan S. Status report on palladium-silver-based crown and bridge alloys. J Am Dent Assoc 1974;89:383-5. DOI
5	Purcell BA, McGlumphy EA, Holloway JA, Beck FM. Prosthetic complications in mandibular metalresin implant-fixed complete dental prostheses: a 5-to 9-year analysis. Int J Oral Maxillofac Implants 2008;23:847-57.
6	Duncan JP, Nazarova E, Vogiatzi T, Taylor TD. Prosthodontic complications in a prospective clinical trial of single-stage implants at 36 months. Int J Oral Maxillofac Implants 2003;18:561-5.
7	Bozini T, Petridis H, Garefis K, Garefis P. A meta-analysis of prosthodontics complication rates of implant-supported fixed dental prostheses in edentulous patients after an observation period of at least 5 years. Int J Oral Maxillofac Implants 2011;26:304-18.
8	Denry I, Kelly JR. State of the art of zirconia for dental applications. Dent Mater 2008;24:299-307. DOI ScienceOn
9	Barghi N, McKeehan-Whitmer M, Aranda R. Comparison of fracture strength of porcelain-veneeredto-high noble and base metal alloys. J Prosthet Dent 1987;57:23-6. DOI ScienceOn
10	Warpeha WS Jr, Goodkind RJ. Design and technique variables affecting fracture resistance of metalceramic restorations. J Prosthet Dent 1976;35:291-8. DOI ScienceOn
11	Anusavice KJ, Dehoff PH, Gray A, Lee RB. Delayed crack development in porcelain due to incompatibility stress. J Dent Res 1988;67:1086-91. DOI ScienceOn
12	Rosenstiel SF, Land MF, Fujimoto J. Contemporary fixed prosthodontics. 4th ed. New York; Elsevier Inc.; 2006. p. 743-50.
13	Larsson C, Vult von Steyern P, Nilner K. A prospective study of implant-supported full-arch yttria-stabilized tetragonal zirconia polycrystal mandibular fixed dental prostheses: three-year results. Int J Prosthodont 2010;23:364-9.
14	Ortorp A, Jemt T. Clinical experiences of CNC-milled titanium frameworks supported by implants in the edentulous jaw: 1-year prospective study. Clin Implant Dent Relat Res 2000;2:2-9. DOI ScienceOn
15	Linkevicius T, Vladimirovas E, Grybauskas S, Puisys A, Rutkunas V. Veneer fracture in implant-supported metal-ceramic restorations. Part I: Overall success rate and impact of occlusal guidance. Stomatologija 2008;10:133-9.
16	Henry PJ. An alternate method for the production of accurate casts and occlusal records in the osseointegrated implant rehabilitation. J Prosthet Dent 1987;58:694-7. DOI ScienceOn
17	Katsoulis J, Mericske-Stern R, Rotkina L, Zbaren C, Enkling N, Blatz MB. Precision of fit of implantsupported screw-retained 10-unit computeraided-designed and computer-aided-manufactured frameworks made from zirconium dioxide and titanium: an in vitro study. Clin Oral Implants Res 2014;25:165-74. DOI ScienceOn
18	Goodacre CJ. Palladium-silver alloys: a review of the literature. J Prosthet Dent 1989;62:34-7. DOI ScienceOn
19	Kansu G, Aydin AK. Evaluation of the biocompatibility of various dental alloys: Part I-Toxic potentials. Eur J Prosthodont Restor Dent 1996;4:129-36.
20	Jemt T, Book K. Prosthesis misfit and marginal bone loss in edentulous implant patients. Int J Oral Maxillofac Implants 1996;11:620-5.
21	Ortorp A, Jemt T. Early laser-welded titanium frameworks supported by implants in the edentulous mandible: a 15-year comparative follow-up study. Clin Implant Dent Relat Res 2009;11:311-22. DOI ScienceOn
22	Tan KB, Rubenstein JE, Nicholls JI, Yuodelis RA. Three-dimensional analysis of the casting accuracy of one piece, osseointegrated implant-retained prostheses. Int J Prosthodont 1993;6:346-63.
23	Roberts DH. The failure of retainers in bridge prostheses. An analysis of 2,000 retainers. Br Dent J 1970;128:117-24. DOI ScienceOn