ASSESSMENT OF POLYMERIZATION SHRINKAGE IN RESIN BASED COMPOSITE IMPREGNATED WITH VARIOUS CONCENTRATION OF CELLULOSE NANOCRYSTALS

ABSTRACT The aim of this research was to determine polymerization shrinkage of resin based composite impregnated with various concentrations of cellulose nanocrystals (CNC). This was an experimental laboratory based study conducted in Peshawar Dental College and Material Research Lab, University of...

Full description

Saved in:
Bibliographic Details
Published in:Pakistan oral & dental journal 2022-12, Vol.42 (4), p.209
Main Authors: FAHAD KHAN BANGASH, Hanif, Amjad, MEHREEN IMRAN, Rehman, Hina
Format: Article
Language:English
Subjects:
Cellulose
Composite materials
Crystals
Dental restorative materials
Hypotheses
Mechanical properties
Nanocrystals
Polymerization
Silica
Variance analysis
Zinc oxides
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:ABSTRACT The aim of this research was to determine polymerization shrinkage of resin based composite impregnated with various concentrations of cellulose nanocrystals (CNC). This was an experimental laboratory based study conducted in Peshawar Dental College and Material Research Lab, University of Peshawar from 2020 to 2021. In this study, an experimental composite (EC1) was made and then modified with 0, 2, 4, 6 and 8 wt% CNC. EC1 was taken as the control group, and the interventional groups were designated as EC2, EC3, EC4 and EC5 with 2, 4, 6 and 8 wt% CNC respectively. These were also compared with a commercially available RBC, Coltene (A). For measuring polymerization shrink-age, Archimedes principal was employed. Data was analyzed using One-way ANOVA and Dunnett's test. P value less than 0.05 was considered as significant. EC5 exhibited lowest shrinkage (1.4%) followed by EC4 (1.7%), EC3 (2.3%), EC2 (2.7%) and EC1 (3%) respectively. EC2, EC3, EC4, EC5, showed significantly lower polymerization shrinkage when compared to EC1 (p
ISSN:1012-8700
1996-4439