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  • Book
    by Giuseppe Amato.
    Summary: This book aims at filling a gap in relation to the pathophysiology of the inguinal region and the genesis of groin protrusions. While inguinal hernia is a widespread disease and hernia repair accounts for the most frequently performed surgical procedure, these two aspects have been unsatisfactorily investigated, so that to date there is no shared hypothesis on how visceral protrusion through inguinal barrier occur. Exact knowledge on the pathogenesis is fundamental for adequately managing a disease, otherwise all curative approaches would not be evidence-based, but merely empirically identified and with uncertain outcomes carried out. Moreover, in absence of pathogenetic certainty, formulating guidelines simply results in an unjustified methodology harbinger of polemics and controversies. Previous studies concerning the pathogenesis of inguinal protrusions were mainly focused on the detection of biochemical changes, mostly related to collagen chains, metalloproteinase and similar elements. Nevertheless, despite decades of researches, a sure relationship between these ultrastructural modifications and visceral protrusion has not been proven. On the contrary, over the years very few investigations dealt with evidencing eventual modifications in the tissue structures of the herniated groin. An extensive research finalized to ascertain in patients and in cadavers structural changes of the tissue elements composing the groin was therefore carried out by the author and his researchers team. The findings of these studies resulted to be very useful for definitely evidencing the etiology of inguinal hernia disease. Overall, the proposed book scrutinizes and widens all emerging aspects related to pathogenesis, histology, physiology, surgical and functional anatomy of the inguinal area affected by hernia protrusion. It intends to be a reference guide to surgeons willing to better understand the structural modifications occurring in patients affected by this disease with the aim of improving treatment results.

    Contents:
    Gross anatomy of the inguinal region
    The pelvis: gender related differences and its impact in visceral protrusion disease. An overview of the pelvic contour differences between male and female and its significance .-Physiology of the inguinal area.-Pathological anatomy and histology of the herniated groin.A comprehensive description of the structural changes occurring in the inguinal area
    The septum inguinalis: its role in the pathogenesis of inguinal hernia
    New aspects in functional anatomy of the groin
    Classification of inguinal hernias based on the functional anatomy of the groin
    State of the art and future perspectives in inguinal hernia repair.
    Digital Access Springer 2022
  • Article
    Bowen RL.
    Int Dent J. 1978 Jun;28(2):97-107.
    While the acid etch technique has largely solved the problem of bonding restorative materials to enamel, attempts to improve adhesive bonding to dentin have so far had only limited success. One aspect to which insufficient attention has been paid is the presence of a smear layer on cut surfaces and of pellicle on surfaces exposed to saliva, both of which would reduce or prevent durable adhesive bonds. The present study attempts to evaluate the usefulness of various acidic solutions in removing these surface layers while causing minimal damage to the vital contents of the dentinal tubules. A series of twelve 0.16 M buffer solutions were applied to cut dentin surfaces which were then washed, dried and sputter-coated with gold/palladium in preparation for examination by scanning electron microscopy. It is concluded that the smear layer on cut dentin surfaces can be substantially removed in vitro by a 30 second exposure to an isotonic solution of buffered monobasic acids having pKa values between 3.8 and 2.5. Since these solutions did not always remove material from grooves in the prepared surface clinical techniques should aim at producing a smooth cut surface. The response of the vital pulp to this treatment still awaits investigation.
    Digital Access Access Options