CV
Questions
COMPARATIVE STUDY REGARDING THE EFFECT OF DIFFERENT FINISHING AND POLISHING SYSTEMS ON A BULK-FILL COMPOSITE RESIN SURFACE
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Irina NICA
DMD, MSc, PhD, Assistant Professor Department of Odontology- Periodontology and Fixed Prosthodontics
Faculty of Dental Medicine,“ Grigore T. Popa” University of Medicine and Pharmacy Jassy, Romania
Original Article
CV
Doctor Irina Nica is Assistant Professor of Cariology and Operative Dentistry at the Faculty of Dental Medicine,“ Gr. T. Popa” University of Medicine and Pharmacy Jassy, Romania. She graduated from the Faculty of Stomatology of the“ Gr. T. Popa” University of Medicine and Pharmacy, Jassy( 2001). She is a Board Certified Physician in the specialty“ General Stomatology”( 2005). In 2012 she obtained her PhD title in medical sciences with a thesis entitled“ Theoretical and experimental contributions to nanomaterials usage in dental medicine”. Her main research field is Restorative Dentistry.
Questions
1. A smooth surface of the composite restoration is very important for: qa. Preventing biofilm accumulation; qb. Maintaining oral health; qc. Preventing external staining; qd. All the previous answers are correct.
2. The two steps polishing system used in the present study was: qa. Tungsten Carbide Burs H135Q and H135UF( Komet Dental / Gebr Brasseler GmbH & Co. KG, Germany); qb. Occlubrush system( KerrHawe SA, Switzerland); qc. Sof-Lex system( 3M ESPE); qd. Super Snap system( Shofu, Inc. Kyoto, Japan).
3. The action of the instrument used for finishing and polishing determines different values of roughness parameters by: qa. The hardness of the abrasive powder; qb. The diameter of the particles from which it is made; qc. The flexibility of the substrate on which the abrasive powder is impregnated; qd. All the previous answers are correct.
4. The surface microstructure of Filtek Bulk Fill composite was evaluated: qa. Qualitatively by AFM( Atomic Force Microscopy); qb. Quantitatively by Profilometry; qc. Qualitatively by MO( Optical Microscopy); qd. Quantitatively by SEM( Scanning Electron Microscopy).
Stomatology Edu Journal
97