2012 - Europe Direct Iasi

EUROINVENT 2012
are temporary. due to rapid acceleration in the erosion of
competitive advantage in almost all businesses can be traced
back to developing new technologies quickly. Since more than
death is sudden new business models that have been rapidly
challenging the current leaders leverage the special skills that
enable them to invade and conquer the market more targeted
customer segments. This research program provides a broad
literature review to identify the latest trends in e-SCM. Also, try
to study some of the problems associated with e-SCM, along
with their solutions and practices.
X. 10.
Title
Study regarding the effects of acid etching on enamel affected by
non-cavitated carious lesions
Authors Stoleriu Simona, Pancu Galina
Institution
University of Medicine and Pharmacy „Gr.T.Popa”-Iassy,
Romania, Faculty of Dental Medicine
The aim of the study was to establish and to compare the effects
of ortophosphoric acid and hydrochloric acid on enamel affected
by incipient carious lesions with different evolution. 20 teeth
having acute and chronical non-cavitated carious lesions were
used in this study. The teeth were sectioned in two halves
through the middle of the non-cavitated lesions. The halves of 5
white spot lesions and of 5 brown spot lesions were analyzed
using an atomic force microscope (AFM) to establish the surface
roughness. 5 halves with white spot lesions and 5 halves with
brown spot lesions were etched using 37% ortophosphoric acid
(Scotchbond etchant gel, 3M ESPE), and an equal number of
Description samples were etched using 15% hydrochloric acid (ICON-etch,
DMG Dental Products Ltd) for 2 min, then washed with water
and analyzed by AFM. The initial surface roughness of the
enamel was higher in the white spot lesions, comparatively with
the brown lesions. For both types of non-cavitated lesions, acid
etching with phosphoric and hydrochloric acid significantly
increased the surface roughness of the enamel when comparing
with the enamel surface before etching. The hydrochloric acid
led to a surface roughness significantly higher than
ortophosphoric acid, in both acute and chronical non-cavitated
carious lesions. The roughness values obtained after etching with
ortophosphoric and hydrochloric acid were higher in the white
spot lesions, when comparing with brown spot lesions.
X. 11.
Title
Studies on water footprint assessment in the sustainable water
resources management
Authors Simona-Andreea Ene, Carmen Teodosiu
Innovative Researches
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