2013
DOI: 10.1590/0103-6440201301575
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Abstract: The aim of this study was to evaluate the vertical marginal gap of sintered gold copings and metal-ceramic crowns with different finish line preparations: a beveled round shoulder (BRS) and a beveled long chamfer (BLC), testing the null hypotheses that there are no differences in marginal gap regardless of finish line and phase of restoration (coping or crown). Stainless steel master models were fabricated to simulate tooth preparation for metal-ceramic crowns with different finish lines (BRS and BLC). Ten die… Show more

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Cited by 2 publications
(35 citation statements)
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References 21 publications
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“…Several factors may influence the marginal fit: 3 Ceramic material; 4 antirotation abutment features; 5 finish line curvature; 6 finish line preparation; 7 ceramic firing; 8 occlusal surface preparation; 9 cementation process; 10 cement type; 11 preparation angle; 12 the type of alloy, 8 and the fabrication method of the coping 13 . For cement‐retained implant‐supported single crowns, prefabricated standard titanium abutments with reduced diameter, increased taper, and narrow margins have been used widely.…”
mentioning
confidence: 99%
“…Several factors may influence the marginal fit: 3 Ceramic material; 4 antirotation abutment features; 5 finish line curvature; 6 finish line preparation; 7 ceramic firing; 8 occlusal surface preparation; 9 cementation process; 10 cement type; 11 preparation angle; 12 the type of alloy, 8 and the fabrication method of the coping 13 . For cement‐retained implant‐supported single crowns, prefabricated standard titanium abutments with reduced diameter, increased taper, and narrow margins have been used widely.…”
mentioning
confidence: 99%
“…O aumento das fendas marginais promove a descontinuidade da junção entre a parte cervical da prótese e o preparo, expondo o agente de cimentação aos fluidos do meio oral e gerando maior predisposição de acúmulo de biofilme. O resultado deste acúmulo é a microinfiltração e a irritação dos tecidos periodontais e pulpares, levando a um comprometimento da longevidade da restauração protética (10,11) . O desajuste marginal das restaurações fixas pode estar relacionado a eventuais erros no procedimento clínico e/ou laboratorial, além das características peculiares de cada liga.…”
Section: Introductionunclassified