Estudio in vitro de la estabilidad dimensional de troqueles para prótesis fi jas de tramos largos tomados con cubetas prefabricadas metálicas perforadas y cubetas individuales de acrílico-autocurado

Samuel David Giraldo Gómez; Elizabeth Pino Álvarez; Juan Sebastián Restrepo Luna; Luisa Fernanda Quiceno Bedoya

IN-VITRO STUDY OF DIMENSION DIE STABILITY FOR LONG FIXED PROSTHESIS TAKEN BY PERFORATED METAL STOCK TRAYS AND SELF-CURING ACRYLIC TRAYS

Research Articles

Samuel David Giraldo Gómez Ver Biografía

Universidad Cooperativa de Colombia, sede Medellín

Elizabeth Pino Álvarez Ver Biografía

Universidad Cooperativa de Colombia

Juan Sebastián Restrepo Luna Ver Biografía

Universidad Cooperativa de Colombia

Luisa Fernanda Quiceno Bedoya Ver Biografía

Universidad Cooperativa de Colombia

Introduction: taking fixed partial denture impressions, silicon is better by adding dimension stability and a higher detail reproduction. Trays are required; they may be perforated metal stock or self-curing acrylic. Materials and

methods: we performed an experimental, comparative in-vitro study by sampling 10 plaster models got from ten impressions taken using five perforated metal stock trays and five self-curing acrylic trays, all of them made by stainless steel model simulating the lower jaw. Measuring plaster models and the stainless steel model was performed by a single operator through a stereoscope Nikon model CPs 160, Series 1005941. First, we calibrated the stainless steel model by measuring height and diameter of abutment teeth canines 33-43, first molars 36-46, the interpillar distance between 33-43 and 43-46. Then plaster models were measured and results compared using descriptive summary measures and averages based on Mann-Whitney test.

Results: none of the measurements taken on models based on both basin types revealed a statistically significant difference p > 0.5.

Conclusions: no statistically significant difference by taking impressions with perforated metal stock trays or self-curing acrylic trays.

Keywords: trays, dimension stability, impressions

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IN-VITRO STUDY OF DIMENSION DIE STABILITY FOR LONG FIXED PROSTHESIS TAKEN BY PERFORATED METAL STOCK TRAYS AND SELF-CURING ACRYLIC TRAYS. (2014). Revista Nacional De Odontología, 7(12), 35-42. https://revistas.ucc.edu.co/index.php/od/article/view/297

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Vol. 7 No. 12 (2011)

Published

2014-01-19

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