Authors :
Dr. Amrita Upadhyay; Dr. Garima Agarwal; Dr. Virag Srivastava; Dr. Swati Gupta; Dr. Manoj Upadhyay; Dr. Ruquaya Bashir
Volume/Issue :
Volume 8 - 2023, Issue 6 - June
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://tinyurl.com/mrxt3d7d
DOI :
https://doi.org/10.5281/zenodo.8163570
Abstract :
Aim:
To evaluate and compare the flexural strength and
antimicrobial properties of heat cure denture base resins
by addition of TiO2 nanoparticles and methacrylic acid
at different concentration.Specimens were
prepared. These specimens were stored at 37 ̊C in
distilled water for 1 day. Specimens were incubated in
BHI broth containing S. aureus and C. albicans in
different test tubes at 37 ̊C for 18 hrs before the
evaluation of microorganism adhesion and flexural
strength. CFUs were evaluated of C. albicans and S.
aureus when incubated at 37 ̊C on blood agar. Flexural
test was measured by using universal testing machine at
speed of 5mm/min. Data were subjected to static analysis
(ANOVA, Tukey’s HSD test).Results:
Reduction in CFU counts of S. aureus and C. aureus
were found more significant for group IV as compared
to group I and there was non-significant reduction in
flexural strength in group II. Other groups showed
significant reduction when compared to control group.
Conclusion:
Group IV had better antimicrobial property and
acceptable flexural strength hence this information can
be used clinically as per patient requirement.
Key words: Antimicrobial property, flexural strength,
TiO2NPs, MAA, PMMA
Aim:
To evaluate and compare the flexural strength and
antimicrobial properties of heat cure denture base resins
by addition of TiO2 nanoparticles and methacrylic acid
at different concentration.Specimens were
prepared. These specimens were stored at 37 ̊C in
distilled water for 1 day. Specimens were incubated in
BHI broth containing S. aureus and C. albicans in
different test tubes at 37 ̊C for 18 hrs before the
evaluation of microorganism adhesion and flexural
strength. CFUs were evaluated of C. albicans and S.
aureus when incubated at 37 ̊C on blood agar. Flexural
test was measured by using universal testing machine at
speed of 5mm/min. Data were subjected to static analysis
(ANOVA, Tukey’s HSD test).Results:
Reduction in CFU counts of S. aureus and C. aureus
were found more significant for group IV as compared
to group I and there was non-significant reduction in
flexural strength in group II. Other groups showed
significant reduction when compared to control group.
Conclusion:
Group IV had better antimicrobial property and
acceptable flexural strength hence this information can
be used clinically as per patient requirement.
Key words: Antimicrobial property, flexural strength,
TiO2NPs, MAA, PMMA
