EVALUATION OF DIMENSIONAL ACCURACY, FLOW, AND GELATION TIME OF 1.0% CHITOSAN INCORPORATED IRREVERSIBLE HYDROCOLLOID IMPRESSION MATERIAL

Abstract

In dentistry, irreversible hydrocolloid impression materials are frequently utilised for making both preliminary and final impressions. Dental professionals are more likely to become contaminated by these materials. According to studies, using 1.0% water-soluble chitosan can disinfect an impression by reducing the microbial load. To support its use in clinical practice, it is necessary to evaluate the mechanical and physical characteristics of irreversible hydrocolloid impression material modified with 1.0% chitosan. Therefore, this study aimed to evaluate the physical and mechanical properties of irreversible impression materials modified with 1.0% Chitosan. A significant (p=0.01) increase in gelation time, and no significant differences in the percentage of dimensional change (p=0.32) and the flow were observed with 1.0% chitosan compared with distilled water. It can be suggested that 1.0% water-soluble chitosan solution can be used as a water substituent for mixing with irreversible hydrocolloid impression material as the changes observed were within clinically acceptable limits.

Keywords

• water soluble chitosan
• irreversible hydrocolloid impression material
• dimensional accuracy
• gelation time
• flow