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CC BY-NC-ND 4.0 · Eur J Dent 2017; 11(02): 253-257
DOI: 10.4103/ejd.ejd_57_17
Case Report
Dental Investigation Society

Anterosuperior rehabilitation with metal-free fixed prosthesis based on zirconia

Sthelen Nayara Cenci
1   Department of Dentistry, State University of Ponta Grossa (UEPG), Paraná, Brazil
,
Igor Alessandro Gontarsky
1   Department of Dentistry, State University of Ponta Grossa (UEPG), Paraná, Brazil
,
Marcella Goetz Moro
2   Department of Stomatology, Discipline of Periodontology, School of Dentistry, University of São Paulo (FOUSP), São Paulo, Brazil
,
Lidia Olga Bach Pinheiro
1   Department of Dentistry, State University of Ponta Grossa (UEPG), Paraná, Brazil
,
Adriana Postiglione Bührer Samra
2   Department of Stomatology, Discipline of Periodontology, School of Dentistry, University of São Paulo (FOUSP), São Paulo, Brazil
› Author Affiliations
Further Information

Publication History

Publication Date:
23 September 2019 (online)

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ABSTRACT

The loss of upper front dental elements causes functional and psychosocial problems to the affected individuals. In this case report, the treatment planning considered hard and soft tissue loss for a complex fixed partial denture (FPD) rehabilitation. The six-element, all-ceramic FPD was manufactured using a computer-aided design/computer-aided manufacturing system with zirconia framework, veneered with leucite-reinforced ceramic. Ceramic artificial gum was also produced to guarantee tooth-facial proportions as well as lip support, promoting both esthetics and phonetics. The material's mechanical properties allowed for the coupling of the esthetic and mechanical requirements, proving an alternative to the well-established metal-ceramic technology, optimizing biomimetic. One of the endodontic-treated abutment teeth required a radicular retainer with cast metal post, but because of the opacity of zirconia, the esthetics of the prosthesis was not compromised. The low silica content of high resistance ceramics such as zirconia hampers the adhesive cementation, with numerous studies advocating for different cementation protocols, with no clear scientific consensus so far. In the present case, the internal surface of the FPD was initially blasted with aluminum oxide, followed by the application of a universal adhesive system containing 10-methacryloyloxydecyl dihydrogen phosphate. Finally, cementation to the dental structure was conducted with dual-cure self-adhesive resin cement.

Key words:

Computer-aided design - dental - denture - esthetics - fixed - partial
 

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