1,721,029 research outputs found
Lateral ridge augmentation using an equine flex bone block infused with recombinant human platelet-derived growth factor BB: A clinical and histologic study
No full textThis paper reports on a patient who underwent horizontal ridge augmentation using recombinant human platelet-derived growth factor BB (rhPDGF-BB) in combination with a collagenate equine block. Ninety days after the first surgery, 8 mm of new bone was noted on a computed tomography scan, and three 5-mm implants were placed. Histology, performed using confocal laser scanning microscopy, showed a large amount of newly formed bone well characterized with osteon and resorption lacunae, which demonstrated the intense bone remodeling. This study supports the use of rhPDGF-BB in combination with allograft blocks. © 2011 by Quintessence Publishing Co Inc
Traumatic ulcerative granuloma with stromal eosinophilia of the oral mucosa: histological and immunohistochemical analysis of three cases.
No full textTraumatic ulcerative granuloma with stromal eosinophilia is an ulcerated oral lesion which pathogenesis is still unclear. Clinically, this disease is characterized by the presence of chronic ulcerative lesions with elevated and indurated borders in the oral mucosa. It usually develops rapidly and persists for several weeks or months, it presents mainly on the tongue but other areas such as gingival, cheek and vestibular mucosa may also be involved. We report three cases showing their clinical, histological and immunohistochemical analysis. In this study the authors underline the importance of a correct differential diagnosis and monitoring of these patients in order to prevent the development of possible serious complications
Analysis of ghost cells in calcifying cystic odontogenic tumors by confocal laser scanning microscopy
No full textObjective. The confocal laser scanning microscope represents an effective tool for studying biological samples stained for fluorescence observation. In this study we have used the confocal microscope to analyze ghost cells in calcifying cystic odontogenic tumors.Study design. Specimens from 15 calcifying cystic odontogenic tumor cases were stained with hematoxylin and eosin, and scanned by a confocal laser scanning microscope to generate optically sectioned images.Results. All of the analyzed samples presented autofluorescent cells that were identified as ghost cells. The degree of autofluorescence intensity was variable and may be a result of the presence of hard keratin.Conclusion. The confocal laser scanning microscope may be of help in analyzing and defining the nature and extent of keratinization processes in calcifying cystic odontogenic tumor ghost cells
Espressione della citocheratina 19 e dell’oncoproteina HPV16 E7 nei carcinomi squamosi del cavo orale.
No full textTraumatic ulcerative granuloma with stromal eosinophilia of the oral mucosa: histological and immunohistochemical analysis of three cases
No full textAnalysis of ghost cells in calcifying cystic odontogenic tumors by confocal laser scanning microscopy
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Going 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
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