Next Article in Journal
Effect of Surface Treatments on Shear Bond Strength of Polyetheretherketone to Autopolymerizing Resin
Previous Article in Journal
A Critical Review of Modern Concepts for Teeth Whitening
Open AccessArticle

Dimensional Stability of a Preliminary Vinyl Polysiloxane Impression Material

1
Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
2
Facultad de Odontología, Universidad de Sevilla, C/ Avicena s/n 41009 Sevilla, Spain
*
Author to whom correspondence should be addressed.
Dent. J. 2019, 7(3), 81; https://doi.org/10.3390/dj7030081
Received: 3 June 2019 / Revised: 25 June 2019 / Accepted: 27 June 2019 / Published: 1 August 2019
(This article belongs to the Section Dental Materials)
Oral rehabilitation success depends upon the accuracy and dimensional stability of the impressions. The purpose of this study is to evaluate the dimensional changes of a first impression type VPS (Vinyl Polysiloxane) (Imprint™ 4 Preliminary Penta™ Super Quick, 3M ESPE™, St Paul, MN, USA). 10 samples were obtained from this silicone with an automatic mixing machine (Pentamix 2, 3M ESPE™, Seefeld, Germany) according to International Organization for Standardization (ISO) 4823:2000 and stored in the IPQ (Portuguese Institute for Quality) for one week. The measurements were performed by laser interferometry, according to the Michelson technique. The dimensional stability was calculated according to the formula specified in ISO (International Organization for Standardization) 4823:2000. A statistical analysis via a one-way repeated measures ANOVA was performed. The material shrinkage was 0.29 ± 0.15% after setting, 0.32 ± 0.21% at 24 h and 0.30 ± 0.23% after 1 week. No significant shrinkage of the silicone under investigation was found over time. This material can be stored for a week without the risk of clinically significant dimensional changes. View Full-Text
Keywords: dimensional stability; laser interferometry; vinyl polysiloxane dimensional stability; laser interferometry; vinyl polysiloxane
Show Figures

Figure 1

MDPI and ACS Style

Martins, F.; Reis, J.; Barbero Navarro, I.; Maurício, P. Dimensional Stability of a Preliminary Vinyl Polysiloxane Impression Material. Dent. J. 2019, 7, 81.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop