dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | USC-Universidade do Sagrado Coração | |
dc.date.accessioned | 2019-10-06T16:06:34Z | |
dc.date.accessioned | 2022-12-19T18:42:26Z | |
dc.date.available | 2019-10-06T16:06:34Z | |
dc.date.available | 2022-12-19T18:42:26Z | |
dc.date.created | 2019-10-06T16:06:34Z | |
dc.date.issued | 2018-07-01 | |
dc.identifier | Brazilian Dental Journal, v. 29, n. 4, p. 342-346, 2018. | |
dc.identifier | 1806-4760 | |
dc.identifier | 0103-6440 | |
dc.identifier | http://hdl.handle.net/11449/188393 | |
dc.identifier | 10.1590/0103-6440201801916 | |
dc.identifier | S0103-64402018000400342 | |
dc.identifier | 2-s2.0-85056982486 | |
dc.identifier | S0103-64402018000400342.pdf | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5369431 | |
dc.description.abstract | The aim of this is was evaluate the vertical and horizontal marginal adaptation of 3-unit fixed partial denture frameworks fabricated using different techniques and CAD/CAM systems. A total of 40 framework specimens were fabricated and divided into four groups as follows: lost-wax casting (G1); lost-wax casting with welding (G2); extraoral optical scanning of models (3S/DWOS) (G3); intraoral optical scanning (Cerec Bluecam/Sirona) (G4). A reference model was used to simulate a fixed partial denture with three elements (with a central pontic). The frameworks of G1 and G2 were cast in nickel-chromium (NiCr) alloy, whereas those of G3 and G4 were milled in zirconia. In all groups, vertical and horizontal marginal adaptation (over-contour and under-contour) was evaluated using a three-dimensional optical microscope (Quick Scope, Mitutoyo). The results showed higher vertical marginal misfit in G1 than in the other groups (p<0.001). Regarding horizontal marginal misfit, higher over-contour values occurred in G3 than in the other groups (p<0.001). G3 did not show under-contour at all, whereas the other groups did not differ from each other in this regard (p>0.05). Within the limitations of this study, it can be concluded that lost-wax casting with welding is a viable alternative to the use of CAD/CAM systems to fabricate frameworks of three-unit FPDs, since the techniques yielded similar vertical misfit values. Extra-oral CAD/CAM systems showed the highest horizontal misfit (over-contour) compared to other groups. | |
dc.language | eng | |
dc.relation | Brazilian Dental Journal | |
dc.rights | Acesso aberto | |
dc.source | Scopus | |
dc.subject | CAD/CAM | |
dc.subject | Dental soldering | |
dc.subject | Marginal adaptation | |
dc.subject | Misfit | |
dc.subject | Welding | |
dc.title | Vertical and horizontal misfit analysis of 3-unit FDP fabricated with different techniques and CAD/CAM systems | |
dc.type | Artículos de revistas | |