Test Yourself Question 1/12 Which of the following is a characteristic feature of alginate impression material? A Hydrophobic B Poor dimensional stability C Requires special equipment for mixing D Expensive E Long working time Next Question EXPLANATION: Alginate impression material…
Polysulphide Impression Material, a type of non-aqueous elastomeric impression material, was developed to overcome the limitations of hydrocolloids, offering both dimensional stability and elasticity. Definition of Polysulphide: Polysulphide is an elastic impression material characterized by an SH group-terminated polymer. The…
Definition of Alginate: Alginate, recognized as an irreversible hydrocolloid, constitutes colloid particles comprising alginic salt polymers. Through a chemical reaction, it transitions from a sol (liquid) to a gel (solid) state, resulting in the irreversible nature of the set impression.…
The agar-alginate laminate technique is an innovative method used in dentistry for impression-taking. This technique involves combining agar, a reversible hydrocolloid, with alginate, an irreversible hydrocolloid, to leverage the unique properties of each material. Here’s how the agar-alginate laminate technique…
AGAR IMPRESSION MATERIAL is a reversible hydrocolloid composed of agar weed polymer chains. These polymer chains align to form fibrils, which trap water in the interstices between the chains. This conversion from sol to gel is a thermal process, making…
Hydrocolloid In Dentistry Definition and General Properties Hydrocolloids in dentistry are a type of colloid in which the dispersed particles (solute) are uniformly distributed and suspended within a liquid medium (solvent), typically water. Unlike solutions where solute particles dissolve completely,…
What are the key properties of Zinc Oxide Eugenol Impression Material (ZOIM) that make it suitable for dental impressions? Describe the composition of ZOIM, including the constituents of both the base and accelerator pastes. How is ZOIM manipulated before recording…
Definition of Zinc Oxide Impression Material Zinc oxide impression material is a paste-based substance composed primarily of metallic oxides. It possesses excellent flow characteristics, allowing it to capture intricate details of oral structures accurately. One of its key features is…
Introduction Impression compound is a dental material used for recording impressions of oral tissues in various clinical procedures. How are the impression compounds classified/ Types of impression compounds used in dentistry It is classified into two main categories based on…
Define an impression in dentistry and explain its significance in dental practice. Describe what an impression is and its purpose. Explain how impressions are used to create positive replicas of oral tissues. Discuss the importance of accurate impressions in dental…
