143 - Evaluation of the mechanical, biological and adhesive properties of high viscosity glass ionomer modified with dioxide titanium

Friday, May 24, 2024

11:00 AM – 11:10 AM EST

Location: Exhibit Hall (back left corner of the hall, space 137)

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Presenting Author(s)

PL

Patsy M. Leon Leal

Postgrade Student
Universidad Autonoma de Yucatán
Universidad Autónoma de Yucatán
Mérida, Yucatan, Mexico

Co-Author(s)

JC

Juan Valerio Cauich Rodríguez, DScD

Centro de Investigación Científica de Yucatán
MC

Martha Gabriela Chuc Gamboa, DScD

Universidad Autónoma de Yucatán
LS

Luis Octavio Sánchez Vargas, DScD

Universidad Autónoma de San Luis Potosí

Research Mentor(s)

JC

JUAN VALERIO CAUICH-RODRIGUEZ, n/a

Professor
CENTRO DE INVESTIGACION CIENTIFICA DE YUCATAN A.C.
MERIDA, Yucatan, Mexico

Program Director(s)

MC

Martha G. Chuc Gamboa, N/A, n/a

Professor
Universidad Autonoma de Yucatan
Merida, Yucatan, Mexico

Abstract: -

Purpose: Evaluate the mechanical and antimicrobial characteristics of a high viscosity glass ionomer by adding 3 and 5% titanium dioxide (TiO_{2) as an antimicrobial agent.
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Methods: Mix the GIC according to the manufacturer's instructions and incorporate 3 and 5% of TiO₂.
Compression test: cylinders with a diameter of 4 mm and height of 6 mm will be made. Using a Shimadzu AG1-100 mini universal testing machine, with a 5 kN load cell, at a head speed of 1 mm/min; Place the cylinder between two flat plates, one fixed and the other mobile attached to the machine head. Maximum stress (MPa), the elastic modulus under compression and the percentage of deformation will be determined.
Three-point bending test: the machine will stop when the specimen fractures. The specimens will have a rectangular shape with dimensions of 25 mm long, 5 mm wide and 2 mm thick; placing the sample between two simple supports applying a vertical load in its longitudinal center. Maximum stress (MPa), the elastic modulus in bending and percentage of deformation will be determined.
Adhesion test: 6 premolars will be used per group (n=3). Which will be placed in acrylic molds. The test will be carried out with a 1 kN load cell, stopping the test when material detachment occurs.
The antimicrobial effect will be determined by the macro-dilutions method, cultured in TYCS Agar. The CFU count will be carried out in 4 groups: control, conventional GIC, modified GIC with 3 and 5% TiO_2.-

Results: pending
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Conclusions: pending

Identify Supporting Agency and Grant Number: The Universidad Autónoma de Yucatán will be the sponsor of my thesis.}