Vol - 29, Issue - 10
About the Journal
[This article belongs to Volume - 29, Issue - 10]
International Medical Journal
Journal ID : IMJ-12-10-2022-1549
Total View : 424

Abstract : RMGI (resin-modified glass ionomer cement) was evaluated after 24 hours and 6 months to determine whether nano-sized titanium dioxide particles affected shear bond strength to dentine. Eighty molar teeth were utilized in this research. Each tooth's occlusal surface was cut to disclose mid-coronal dentine to produce a surface smooth before abrading surface dentine by using silicon carbide paper with a granularity of 600. Teeth have been placed in a self-curing acrylic resin mold. Titanium dioxide particles were accurately weighted with a digital balance before being added to RMGI powder to boost nanoparticle mass percentage in glass powder reach 5%. Teeth were randomly divided into two divisions established on the presence of titanium dioxide nanoparticles. Group A (control): (RMGI) without use of nano titanium dioxide particles (40 specimens). (RMGI) containing nano titanium dioxide particles (40 specimens) was used in Group B. To form to modified glass ionomer resin cement sample of 4 mm height in and 4 mm in diameter, The mixture of powder and liquid was done as stated by the manufacturer's instructions and packed into Teflon molds. Based on the samples had been stored, each group was then subdivided into two subgroups. Subgroup 1 (20 samples) was kept in synthetic saliva for 24 hours. Subgroup 2: For a total of six months, the specimens (20 in total) were maintained in synthetic saliva. We used an Instron universal testing machine to determine shear strength. The RMGIC specimen from group A (control group) with no additives exhibited the greatest mean shear bond strength (MPa) after 24 hours (5.53 1.27), followed by group B at six months (10.84 1.15), and group A at twelve months (5.53 1.27). (5.82 1.24). The control group of mean shear bond strength (RMGIC specimen without any additives) was significantly lower. After 24 hours and after six months, there was a significant difference between mean shear bonds between groups A and B (p<0.001). According to the constraints of this investigation, it seems as though we might strengthen the binding between the resin-modified glass ionomer powder and dentine by adding 5% nano-sized titanium dioxide particles.

Our Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
//