186,231 research outputs found
Evaluation of the Relationship Between Maxillary Labial Frenulum Attachment Types, Periodontal Health, and Dental Caries in Preschool Children
No full textObjective: The purpose of the study was to investigate any possible
relation between maxillary labial frenulum attachment type on
periodontal status and dental caries in pre14school children.
Methods: This cross-sectional study was conducted for six months
among the children who were admitted for treatment at a university
clinic. The children aged between 3 to 6 years were enrolled in
the study. The types of maxillary labial frenulum attachment were
recorded as mucosal, gingival, papillary, and papillary penetrating
types. Plaque index (PI), gingival index (GI), and dental status
(dmft) of maxillary primary incisors were evaluated. Kruskal-Wallis
and Pearson’s chi-squared tests were used for statistical analysis.
Results: A total of 214 children (mean age was 4.4±0.9 years) were
evaluated. The most common maxillary frenulum attachment type
was the gingival type (45.8%), while the papillary penetrating type
(13.1%) was the least common. The PI and GI scores in children
with mucosal type frenulum were lower than in children with the
gingival, papillary, and papillary penetrating types (p<0.01). The
dmft scores were lower in children with mucosal type frenulum and
higher in children with papillary type frenulum (p<0.01).
Conclusion: Papillary and papillary penetrating types of frenulum
attachments were associated with a decline in periodontal health
and higher caries incidence in maxillary primary incisors
Farklı restoratif materyallerin süt dişi aşınması üzerindeki etkisinin mikrobilgisayarlı tomografi ile kantitatif olarak değerlendirilmesi
No full textAuthor-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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