Abstract

The purpose of this study was to evaluate the detail reproduction, gypsum compatibility and linear dimensional change of three recently introduced irreversible hydrocolloid (alginate) alternatives. The materials that were tested are Position Penta Quick® (3M ESPE™), Silgimix® (Sultan Dental) and Alginot® (Kerr™). These materials were tested in accordance with ANSI/ADA Specification No. 18 for Alginate Impression Materials and No. 19 for Dental Elastomeric Impression materials. The irreversible hydrocolloid impression material Jeltrate Plus antimicrobial® (Dentsply Caulk™) served as the control.

MATERIALS AND METHODS: The ADA specification die was used to undertake the testing of the new materials. The parameters of detail reproduction, gypsum compatibility and linear dimensional change were tested in accordance with the ADA specifications. Further, following collation of the results a cost-benefit analysis was performed. STATISTICAL ANALYSIS: For the tested parameters data was first analyzed using the Kruskal-Wallis rank test. Further analysis between the impression materials was investigated using the Mann-Whitney U-test. OUTCOME: It was found that the new materials exhibited more favorable physical properties than traditional irreversible hydrocolloid impression materials in the parameters that were tested. This outcome is related to the fact that these materials are based on addition polymerized silicones. A significant finding was the incompatibility between the control material (Jeltrate Plus antimicrobial®) and Microstone® and in particular surface changes that were noted with time. Further testing is indicated to investigate this and to establish the clinical performance of these new materials.

LLU Discipline

Prosthodontics

Department

Prosthodontics

School

Graduate Studies

First Advisor

Mathew T. Kattadiyil

Second Advisor

Charles J. Goodacre

Third Advisor

Jay Kim

Fourth Advisor

Myron S. Winer

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

2008

Date (Title Page)

9-2008

Language

English

Library of Congress/MESH Subject Headings

Alginates -- chemistry; Calcium Sulfate; Dental Impression Materials -- methods; Materials Testing; Dental Models; Prosthodontics

Type

Thesis

Page Count

x; 59

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

Download

Share

COinS