oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 3 )

2019 ( 199 )

2018 ( 278 )

2017 ( 279 )

Custom range...

Search Results: 1 - 10 of 219515 matches for " C. Stavrianos "
All listed articles are free for downloading (OA Articles)
Page 1 /219515
Display every page Item
Histopathological Findings of Acute Pulpitis in HIV+ve Patient
C. Stavrianos
Research Journal of Medical Sciences , 2012,
Abstract: The purpose of the present investigation was to study the histological findings in a tooth diagnosed with acute pulpitis in a patient suffering from AIDS. Histological investigation of the pulp revealed that decay progress caused inflammatory response of the underlying pulp with different features compared to the inflammatory response found in the teeth of non-diseased individuals. The study revealed different kinds of chronic inflammatory cells and absence of polymorphonuclear leucocytes. Furthermore, widely dilated pulpal blood vessels and formation of zones, where the pulpal tissue was absent, were observed, as well as, traces of hard tissue of the osteotypic form. The inflammation was found to follow the Van Hassel model (expansion of the inflammatory reaction from the primary inflamed area towards the apices).
Forensic Dentistry: Post-mortem Jaw Resection for Dental Evaluation
C. Stavrianos,P. Kafas,I. Stavrianou
Research Journal of Medical Sciences , 2012,
Abstract: Dental evaluation is used by forensic dentists in the identification process of victims. In cases of deformed external features or characteristics of the victim the recognition is difficult without assessing dental morphological signs. We report a case of fatal burn injury where the victim s characteristics were totally deformed. The removal of mandible and maxilla was essential for the identification process. The technique is discussed with a special interest on the documents kept including digital photography. The storage of the specimens is significant for future evaluation and law recall.
The Role of DNA in Forensic Odontology (Part I) DNA Analysis Methods
C. Stavrianos,A. Eliades,A. Kokkas
Research Journal of Medical Sciences , 2012, DOI: 10.3923/rjmsci.2010.334.339
Abstract: During the last years, DNA analysis methods are applied to forensic cases. Also, forensic dental record comparison has been used for human identification in cases where destruction of bodily tissues or prolonged exposure to the environment has made other means of identification impractical, i.e., after fire exposure, aircraft inflammation or mass disasters. Dental DNA represent an excellent source of genomic DNA. The interest in using dental tissues as a DNA-source of individual identification falls within the particular character of resistance of this organ towards physical or chemical exterior aggressions. DNA can be used for determination of the found remains identity. The identification of individuals is not the only use for DNA. The technique has allowed criminal investigators to link victims to crime scenes once the body has been removed and incinerated. Therefore, it is prudent for the forensic odontologist to become familiar with the DNA analysis methods. The purpose of the Part I of this report is to review of the DNA structure and explain of some common terms which are used for the description of current methods of DNA analysis. Furthermore, the importance of mitochondrial DNA is reported because of its difference from the nuclear or chromosomal DNA in a number of ways that make it an attractive alternative for forensic analysis.
Paresthesia of the Mental Nerve Due to Chronic Apical Periodontitis of a Non-Vital Tooth: A Case Report
C. Stavrianos,A. Eliades,I. Stavrianou
Research Journal of Medical Sciences , 2012, DOI: 10.3923/rjmsci.2010.94.97
Abstract: Chronic apical periodontitis of mandibular premolars and molars teeth is quite common phenomenon. In this case report, it is described an unusual case of chronic periodontitis of a right mandibular second premolar tooth in proximity to mental foramen which was the cause of a dysaesthesia in the distribution of the mental nerve. The reported symptoms of sensory disturbance disappeared 3 months after conventional endodontic treatment associated with antibiotic therapy. One year later the tooth was still asymptomatic and the resolution of mental nerve paresthesia was completed.
An Interesting Unusual Case Report of Madly Endodontic Treatments
C. Stavrianos,A. Eliades,A. Kokkas
Research Journal of Medical Sciences , 2012, DOI: 10.3923/rjmsci.2010.98.101
Abstract: A number of reports have been published concerning neuralgia and other complications of the inferior alveolar nerve following a penetration of root canal filling or endo-file into or close to the mandibular canal. Endodontic infections of posterior maxillary teeth sometimes spread to the maxillary sinus, generating severe complications. Also, endodontic implications of the maxillary sinus include the introduction of endodontic instruments and materials beyond the apices of posterior teeth in close proximity to the sinus. Clinicians should be aware of the fact that endodontic instruments and filling materials (solid or liquid) can be extended in such a degree that can lead to neurological or sinus complications, i.e., dysaesthesia of the inferior alveolar nerve or sinusitis, due to the proximity of the apices of the mandibular molars and premolars to the inferior alveolar canal and the maxillary posterior teeth to the sinus floor membrane. An interesting and unusual case of iatrogenic complications due to madly endodontic therapies is presented.
The Role of DNA in Forensic Odontology: Part II
C. Stavrianos,A. Eliades,A. Kokkas
Research Journal of Medical Sciences , 2012, DOI: 10.3923/rjmsci.2010.309.314
Abstract: During the last years, DNA analysis methods are applied to forensic cases. Also, forensic dental record comparison has been used for human identification in cases where destruction of bodily tissues or prolonged exposure to the environment has made other means of identification impractical, i.e., after fire exposure, aircraft inflammation or mass disasters. Teeth represent an excellent source of genomic DNA. The interest in using dental tissues as a DNA-source of individual identification falls within the particular character of resistance of this organ towards physical or chemical exterior aggressions. Because of their resistant nature to environmental assaults such as incineration, immersion, trauma, multilation and decomposition, teeth represent an excellent source of DNA material. When conventional dental identification methods fail, this biological material can provide the necessary link to prove identity. Even root-filled teeth supply sufficient biological material for PCR analysis in order to be compared with known antemortem samples or paternal DNA. DNA can be used for determination of the found remains identity. The identification of individuals is not the only use for dental DNA. The technique has allowed criminal investigators to link victims to crime scenes once the body has been removed and incinerated. Therefore, it is prudent for the forensic odontologist to become familiar with the fundamentals for obtaining and analyzing DNA from the oral and dental tissues. The purpose of the Part II of this report is to review of the application of the DNA technology to forensic odontology cases, the responsibilities of the odontologist and the importance of DNA extracted from oral and dental tissues and saliva.
Estimation of Dental Age Using Root Dentine Translucency
E. Metska,C. Stavrianos,L. Vasiliadis
Surgery Journal , 2012,
Abstract: Age estimation is a process of particular interest in cases of forensic interest as well as in anthropological studies. Many methods have been suggested such as cementum thickness, dental colour, tooth attrition, secondary dentine formation, periodontosis, apical resorption and many techniques have been employed but root dentine translucency remains the method of choice providing the most accurate results for age estimation. The aim of the present study is: to investigate the correlation between the percentage of root translucency in human single-rooted teeth of the lower jaw and age to compare the percentage of translucency between the roots of a molar to compare the percentage of root dentine translucency of the same root of a molar in different individuals of know age. During the study, 44 fresh extracted teeth were utilized. In particular, 17 incisors, 13 canines, 3 premolars of the upper jaw, 3 first molars of the upper jaw and 7 of the lower jaw. The teeth were extracted from 32 individuals, between 12 and 77 years. Group A was made up of the single-rooted teeth of the lower jaw, whereas group B of the molars. Segments with 250 μ g thickness were scanned and saved as bitmap files. The translucency was measured with the use of Visio Professional 2002, a Microsoft product. There is a positive linear correlation between root dentine translucency and age, with a correlation coefficient of r = 0.784. The is a lack of uniformity in dentine translucency among the roots of the same molar tooth. When each root by means of its translucency is taken into account, there is a gradual increase of root dentine translucency of all roots with age, except the distal roots of 2 samples. Among the results of the roots of the upper teeth there is uniformity in the development of root dentine translucency and the palatal root presents a higher percentage than the mesiobuccal and the previous a higher than the disto-buccal.
The Impact of an Environmental Educational Program of a School Garden on Pupils with Intellectual Disabilities—A Comparative Approach  [PDF]
Alexandros Stavrianos, Alexia Spanoudaki
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.34005
Abstract: The following research describes an attempt to combine environmental education through outdoor activities in Special Education. It examines the use of a school garden as a learning environment in Special Education by looking at the stances and opinions of 10 pupils, diagnosed with mild to moderate intellectual disability, towards Environmental Education and prognoses barriers that may occur in the learning process. Specifically, the study focuses on the skills and subject knowledge those students have cultivated through a project called “School Garden”, highlighting the ideas pupils have, regarding the position of environmental education in their school curriculum. Using descriptive statistical analysis to compare the two groups of pupils, this research suggests the further practice of Environmental Education in Special Education. The research took place in two Special Education Primary Schools in Greece, while the data were collected using semi-structured interviews. The main conclusions of the research were that students who participated in their school’s environmental educational program seem to be more familiarized with a range of concepts related to the environment and possess skills linked directly to Environmental Education in relation to their peers that did not engage in the project, while pupils who participated in the “School Garden”, unlike their peers, perceived outdoor activities of their school as part of the learning process, in formal education. This study proposes further research to take place in the area of Environmental Education and Special Education.
Facial Anatomy and Mapping Across Races
C. Stavrianos,C. Papadopoulos,O. Pantelidou,J. Emmanouil,N. Petalotis
Research Journal of Medical Sciences , 2012, DOI: 10.3923/rjmsci.2012.159.162
Abstract: The human face holds key information about identity such as age, sex and ethnicity, information that enables the identification of a single individual. The photographs are used commonly in identifications procedures so that lay people can make cursory identification by comparing the suspect in question with his/her photograph. The other race effect appears to have a significant influence in the face recognition process and facia mapping analyses.
The Issue of Face Recognition
C. Stavrianos,C. Papadopoulos,O. Pantelidou,J. Emmanouil,N. Petalotis
Research Journal of Medical Sciences , 2012, DOI: 10.3923/rjmsci.2012.163.165
Abstract: Recognizing the identities of people is a basic requirement for the establishment and maintenance of social act and communication and face recognition is an ability that humans develop and become very skilled as they grow up. Recognition has always been a very intriguing and highly researched topic and implies the tasks of identification or authentication. It is apparent that face recognition for human beings involves more than simple tasks of shape matching of features and face. Despite the fact that is not fully understood how humans recognise people what is known today is that they use a combination of identifiers such as height, voice and facial features.
Page 1 /219515
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.