Prosthetic misfit of implant-supported prosthesis obtained by an alternative section method
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
01/11/2013
01/11/2013
02/08/2013
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Resumo |
PURPOSE. Adequate passive-fitting of one-piece cast 3-element implant-supported frameworks is hard to achieve. This short communication aims to present an alternative method for section of one-piece cast frameworks and for casting implant-supported frameworks. MATERIALS AND METHODS. Three-unit implant-supported nickel-chromium (Ni-Cr) frameworks were tested for vertical misfit (n = 6). The frameworks were cast as one-piece (Group A) and later transversally sectioned through a diagonal axis (Group B) and compared to frameworks that were cast diagonally separated (Group C). All separated frameworks were laser welded. Only one side of the frameworks was screwed. RESULTS. The results on the tightened side were significantly lower in Group C (6.43 +/- 3.24 mu m) when compared to Groups A (16.50 +/- 7.55 mu m) and B (16.27 +/- 1.71 mu m) (P<.05). On the opposite side, the diagonal section of the one-piece castings for laser welding showed significant improvement in the levels of misfit of the frameworks (Group A, 58.66 +/- 14.30 mu m; Group B, 39.4.8 +/- 12.03 mu m; Group C, 23.13 +/- 8.24 mu m) (P<.05). CONCLUSION. Casting diagonally sectioned frameworks lowers the misfit levels. Lower misfit levels for the frameworks can be achieved by diagonally sectioning one-piece frameworks. [J Adv Prosthodont 2012;4:89-92] |
Identificador |
JOURNAL OF ADVANCED PROSTHODONTICS, SEOUL, v. 4, n. 2, supl. 1, Part 3, pp. 89-92, FEB, 2012 2005-7806 http://www.producao.usp.br/handle/BDPI/37576 10.4047/jap.2012.4.2.89 |
Idioma(s) |
eng |
Publicador |
KOREAN ACAD PROSTHODONTICS SEOUL |
Relação |
JOURNAL OF ADVANCED PROSTHODONTICS |
Direitos |
openAccess Copyright KOREAN ACAD PROSTHODONTICS |
Palavras-Chave | #DENTAL IMPLANTS #IMPLANT-SUPPORTED DENTAL PROSTHESIS #PROSTHESIS FITTING #PROSTHODONTICS #FIXED PARTIAL DENTURE #DENTAL SOLDERING #COMMERCIALLY PURE TITANIUM #FIXED PARTIAL DENTURES #THERMAL CYCLING DISTORTION #FIRING CYCLE #MARGINAL ACCURACY #TENSILE-STRENGTH #ALLOY JOINTS #GOLD ALLOY #FRAMEWORKS #PORCELAIN #DENTISTRY, ORAL SURGERY & MEDICINE |
Tipo |
article original article publishedVersion |