Comparative adaptation of crowns of selective laser melting and wax-lost-casting method / 中华口腔医学杂志
Chinese Journal of Stomatology
; (12): 427-430, 2012.
Article
em Zh
| WPRIM
| ID: wpr-281594
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the marginal adaptation of crowns fabricated by selective laser melting (SLM) and wax-lost-casting method, so as to provide an experimental basis for clinic.</p><p><b>METHODS</b>Co-Cr alloy full crown were fabricated by SLM and wax-lost-casting for 24 samples in each group. All crowns were cemented with zinc phosphate cement and cut along longitudinal axis by line cutting machine. The gap between crown tissue surface and die was measured by 6-point measuring method with scanning electron microscope (SEM). The marginal adaptation of crowns fabricated by SLM and wax-lost-casting were compared statistically.</p><p><b>RESULTS</b>The gap between SLM crowns were (36.51 ± 2.94), (49.36 ± 3.31), (56.48 ± 3.35), (42.20 ± 3.60) µm, and wax-lost-casting crowns were (68.86 ± 5.41), (58.86 ± 6.10), (70.62 ± 5.79), (69.90 ± 6.00) µm. There were significant difference between two groups (P < 0.05).</p><p><b>CONCLUSIONS</b>Co-Cr alloy full crown fabricated by wax-lost-casting method and SLM method provide acceptable marginal adaptation in clinic, and the marginal adaptation of SLM is better than that of wax-lost-casting method.</p>
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Ligas de Cromo
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Técnica de Fundição Odontológica
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Planejamento de Prótese Dentária
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Desenho Assistido por Computador
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Adaptação Marginal Dentária
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Coroas
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Congelamento
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Lasers
Idioma:
Zh
Ano de publicação:
2012
Tipo de documento:
Article