DENTAL MATERIALS
Nica Irina
DDS, PhD, Assistant Professor
Department of Odontology, Periodontology and Fixed Prosthodontics, Faculty of Dental
Medicine, „Gr.T.Popa” University of Medicine and Pharmacy, Jassy, Romania
CV
Doctor Irina Nica graduated from the Faculty of Stomatology of the “Gr.T.Popa”
University of Medicine and Pharmacy Jassy (2001).
She has been Board Certified Physician in the speciality “General
Stomatology”(from 2005-to present). She received her PhD degree in 2012
with the research theme “Theoretical and experimental contributions to
nanomaterials usage in denatal medicine”.
Doctor Irina Nica is Assistant Pofessor of Cariology and Operative Dentistry
at the Faculty of Dental Medicine, “Gr.T.Popa” University of Medicine and
Pharmacy Jassy. She attended five post-graduate training and research courses.
Dr. Nica has published 5 articles in ISI journals, 2 articles in journals indexed for
international data bases and 2 articles in other Romanian journals.
Questions
Regarding the present study:
q a.
q b.
q c.
q d.
Two micro-hybrid composites resins were analyzed
A micro-hybrid and a nano-composite resin were analyzed;
Two restorative nano-composites were analyzed;
Two macro-filled restorative composites were analyzed;
The restorative composites used in the present study have the following filler
load:
q a.
q b.
q c.
q d.
Silica and zirconia 30% vol.
Borosilicate and zirconia 60% vol.
Silica 60% vol.
Silica and zirconia 60% vol.
Regarding the fractal analysis, the fractal dimension, D, has the following value:
q a.
q b.
q c.
q d.
D=1, for a highly irregular line;
D=2, for a perfect smooth line;
D=3, for a perfect smooth surface;
D=2, for a highly irregular line.
Particle-matrix adhesion is not controlled by:
q a. The particle surface on which chemical bonds are formed with the functional groups of the
matrix
q b. The particle surface roughness which extends the effective area for physical contact with the
matrix.
q c. Silane-coupling agent, which connects the inorganic fillers to the organic matrix
q d. The filler particle size.
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STOMA.EDUJ (2015) 2 (1)