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