Effect of selected physical properties of waxes on investments and casting shrinkage

This study evaluated the relationship between flow characteristics, bending strength, and softening temperature of paraffin and dental inlay waxes to casting shrinkage when patterns were invested with a phosphate-bonded investment. This study found that the casting shrinkage decreased as the flow of...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of prosthetic dentistry 1996-02, Vol.75 (2), p.211-216
Main Authors: Ito, Michio, Yamagishi, Toshio, Oshida, Yoshiki, Munoz, Carlos A
Format: Article
Language:English
Subjects:
Chemical Phenomena
Chemistry, Physical
Dental Casting Investment - chemistry
Dental Casting Technique - instrumentation
Dentistry
Hot Temperature
Inlay Casting Wax - chemistry
Paraffin - chemistry
Phosphates - chemistry
Pliability
Rheology
Surface Properties
Temperature
Thermodynamics
Waxes - chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study evaluated the relationship between flow characteristics, bending strength, and softening temperature of paraffin and dental inlay waxes to casting shrinkage when patterns were invested with a phosphate-bonded investment. This study found that the casting shrinkage decreased as the flow of the wax pattern increased. If a low flow wax is used or if there is a need for a thick pattern, the size of the casting ring should be increased. When wax patterns are formed for cast restorations, it is important to select the type of wax with the most desirable properties for the margin and the occlusal portions. Moreover, to accurately fabricate castings, it is necessary to understand the physical properties of the chosen waxes.
ISSN:0022-3913
1097-6841
DOI:10.1016/S0022-3913(96)90101-8