Impression procedure forms the basis of a successful Removable Partial Denture however, in distal extension bases the residual ridge must be recorded in functional form and the remaining natural teeth in an anatomic form. Zinc oxide eugenol impression paste is a material of choice for functional impression whilst irreversible hydrocolloid is suitable for an anatomic impression. Therefore two-pa...

Alginates are classified as elastic impression materials. Within this elastic category it is further subdivided into irreversible hydrocolloids. The reason they are referred to as irreversible is due to the fact that once set in gel form they cannot convert back into sol form. They are widely used in contemporary dentistry for impression making especially in partially edentulous subjects. One o...

A study was conducted to compare tissue displacement resulting from different techniques and impression materials for distal-extension ridges. Impression techniques used were Applegate's functional fluid wax and a single-impression technique with mercaptan rubber. A mucostatic impression technique using irreversible hydrocolloid served as control. The results showed a statistically significant ...

abstract statement of the problem: dental prosthesis is usually made indirectly; therefore dimensional stability of the impression material is very important. every few years, new impression materials with different manufacturers’ claims regarding their better properties are introduced to the dental markets which require more research to evaluate their true dimensional changes. objectives: the ...

BACKGROUND The present study was done to evaluate the dimensional stability and surface quality of Type IV gypsum casts retrieved from disinfected elastomeric impression materials. MATERIALS AND METHODS In an in vitro study contaminated impression material with known bacterial species was disinfected with disinfectants followed by culturing the swab sample to assess reduction in level of bact...

Introduction Tissue conditioners are used for conditioning of denture-bearing inflamed mucosa by ill-fitting dentures prior to fabricating new dentures, for relining the existing dentures, and for provisional relining of immediate dentures and ill-fitting dentures [1-2]. Tissue conditioners have also been used as functional impression materials [1-3]. Their efficacy as functional impression mat...