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Rilevamento di differenti genotipi di Actinobacillus actinomycetemcomitans nel cavo orale (I classificato sessione poster)
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
ENDODONTIC TREATMENT AND HYPOTHESES ON AN UNUSUAL CASE OF DENS INVAGINATUS
No full textThis work describes a case of ‘‘dens invaginatus’’ and
analyzes the possible aspects of this malformation. An
unusual type of dens invaginatus was detected in
a young patient corresponding to the maxillary lateral
incisor and showing extensive periradicular radiolucency
and a vestibular fistula. The radiographic and tomographic
examination revealed two apices: one wide
open in the distal part of the root and the other normally
formed in the mesial. Nonsurgical endodontic treatment
was performed by using the ‘‘one-step apexification
technique,’’ filling both apexes with mineral trioxide
aggregate followed by composite resin. The follow-up
examination 6 months later showed the healing of the
radiolucent area and the healing of the sinus tract.
Hypotheses on which was the type of dens invaginatus
we had to deal with are formulated. (J Endod 2009;35:
417–42
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