Home Subscription Services

The International Journal of Prosthodontics
IJP Home Page
About the Editor
Editorial Board
Accepted Manuscripts
Author Guidelines
Submission Form
Reprints / Articles
Quintessence Publishing: Journals: IJP
The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

July/August 2003
Volume 16 , Issue 4

Share Abstract:

Gingival Sulcus Simulation Model for Evaluating the Penetration Characteristics of Elastomeric Impression Materials

Pantira Aimjirakul, DDS/Takayuki Masuda, DDS, PhD/Hidekazu Takahashi, DDS, PhD/Hiroyuki Miura, DDS, PhD

Pages: 385389
PMID: 12956493

Purpose: This study evaluated the ability of five elastomeric impression materials to penetrate the gingival sulcus beyond the preparation margin. Materials and Methods: A model of brass and agar gel was made to simulate human sulci and clinical gingival conditions. Two addition-curing silicones, one condensation-curing silicone, one polyether, and one polysulfide were tested. Ninety impressions of the model were made, six impressions with each material with differing sulcular widths. The centers of sulcular extension of these impressions were found with a measuring microscope. Results: Two-way ANOVA showed significant differences among impression materials, sulcular widths, and their interactions. The penetration ability of polyether showed greater extension than the other materials, regardless of sulcular width. Polysulfide penetrated less than the two silicones with 0.2- and 0.1-mm sulcular widths but more with the narrow 0.05-mm sulcular width. Conclusion: These results suggest that the viscoelastic behavior of elastomers depends on the width of sulci. Moreover, the sulcus simulation model effectively contributes to the investigation of their characteristics. Int J Prosthodont 2003;16:385389.

Full Text PDF File | Order Article


Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.
  © 2017 Quintessence Publishing Co Inc

Home | Subscription Services | Books | Journals | Multimedia | Events | Blog
Terms of Use | Privacy Policy | About Us | Contact Us | Advertising | Help | Sitemap | Catalog