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https://www.readbyqxmd.com/read/28218030/incidence-of-radiographic-cystic-lesions-associated-with-unerupted-teeth-in-dogs
#1
Sam G Babbitt, Mary Krakowski Volker, Ira R Luskin
Medical records and radiographs were retrospectively reviewed over a 3-year period (2012-2015) from dogs presented to a private dental referral practice. Medical records were evaluated for the diagnosis of impacted or embedded teeth. The identified dogs' radiographs were reviewed for the presence of radiographically significant cystic lesions that were associated with the impacted or embedded teeth. Radiographic criteria were established by the authors for the purposes of identifying cystic lesions in dogs of different breeds and sizes, using established indices from human dental pathology as a basis...
December 2016: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28216693/oral-surgery-treatment-of-a-dentigerous-cyst-in-a-dog
#2
Graham Thatcher
No abstract text is available yet for this article.
February 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28209010/removal-of-infected-maxillary-third-molar-from-the-infra-temporal-fossa-by-caldwell-luc-procedure-rare-case-report-with-literature-review
#3
Anand Kumar, Ram Kumar Srivastava, Anurag Saxena, Ruchika Khanna, Iqbal Ali
Dentigerous or follicular cysts of odontogenic origin are innocuous benign cysts that are often linked with the crowns of permanent teeth. A dentigerous cyst circumventing permanent teeth fails to erupt and is often displaced into ectopic positions in the upper and lower jaw in the maxillofacial region. In the maxilla or upper jaw region, the impacted teeth are often displaced and/or shift into the maxillary sinus and apart from the nasal septum, mandibular condyle, coronoid process and the palate, to harbour such ectopic eruptions of teeth...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28209002/ability-of-oral-and-maxillofacial-surgery-residents-in-diagnosing-jaw-cysts-a-retrospective-20-years-study
#4
Hassan Mohajerani, Mohammad Esmaeelinejad, Reza Mofidian
INTRODUCTION: Diagnosis of odontogenic cysts despite of their benign nature is a critical and challenging problem especially among undergraduate and postgraduate students. AIM: This study aimed to evaluate the capability of oral and maxillofacial surgery residents in diagnosing odontogenic cysts. MATERIALS AND METHODS: This cross-sectional study was executed on 312 patient records over the past 20 years since October 1995 till December 2014 in Taleghani Hospital, Tehran, Iran...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203028/-unerupted-first-deciduous-molar-located-higher-to-the-first-premolar-a-case-report
#5
Y Zhan, H Liu
Tooth eruption is defined as the movement of a tooth from its site of development within the alveolar process to its functional position in the oral cavity. The process of tooth eruption can be divided into different phases: pre-eruptive bone stage, alveolar bone stage, mucosal stage, preocclusal stage, occlusal stage and maturation stage. Any disturbance in these phases can lead to eruptive anomalies. The incidence of unerupted teeth is usually higher among permanent teeth than among deciduous ones. Of the primary teeth reported as unerupted, second deciduous molars are the teeth most frequently involved, followed by primary central incisors...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28187891/automated-classification-of-maxillofacial-cysts-in-cone-beam-ct-images-using-contourlet-transformation-and-spherical-harmonics
#6
Fatemeh Abdolali, Reza Aghaeizadeh Zoroofi, Yoshito Otake, Yoshinobu Sato
BACKGROUND AND OBJECTIVE: Accurate detection of maxillofacial cysts is an essential step for diagnosis, monitoring and planning therapeutic intervention. Cysts can be of various sizes and shapes and existing detection methods lead to poor results. Customizing automatic detection systems to gain sufficient accuracy in clinical practice is highly challenging. For this purpose, integrating the engineering knowledge in efficient feature extraction is essential. METHODS: This paper presents a novel framework for maxillofacial cysts detection...
February 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28174367/collagen-and-its-role-in-predicting-the-biological-behavior-of-odontogenic-lesions
#7
Pavan G Kulkarni, M Aruna Kumari, Abhishek Jahagirdar, Srk Nandan, Shyam Prasad Reddy D, M Keerthi
INTRODUCTION: Odontogenic cysts and tumors have variable recurrence rates. Recurrence rate is mainly due to the activity of the epithelium. The epithelium of these lesions has been investigated extensively in regard to their role in proliferative and aggressive behavior of the lesions. However, the role of the connective tissue wall in their behavior has not been studied as extensively. Collagen is an essential part of the connective tissue as a whole and fibrous wall of cystic lesions especially...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28153133/odontogenic-cysts-and-neoplasms
#8
REVIEW
Elizabeth Ann Bilodeau, Bobby M Collins
This article reviews a myriad of common and uncommon odontogenic cysts and tumors. The clinical presentation, gross and microscopic features, differential diagnosis, prognosis, and diagnostic pitfalls are addressed for inflammatory cysts (periapical cyst, mandibular infected buccal cyst/paradental cyst), developmental cysts (dentigerous, lateral periodontal, glandular odontogenic, orthokeratinized odontogenic cyst), benign tumors (keratocystic odontogenic tumor, ameloblastoma, adenomatoid odontogenic tumor, calcifying epithelial odontogenic tumor, ameloblastic fibroma and fibroodontoma, odontoma, squamous odontogenic tumor, calcifying cystic odontogenic tumor, primordial odontogenic tumor, central odontogenic fibroma, and odontogenic myxomas), and malignant tumors (clear cell odontogenic carcinoma, ameloblastic carcinoma, ameloblastic fibrosarcoma)...
March 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/28152489/a-case-report-of-unusual-anatomical-variation-externalisation-of-inferior-alveolar-nerve
#9
David McAnerney, Shadi Basyuni, Vijay Santhanam
INTRODUCTION: The risks of third molar surgery have been well documented with damage to the inferior alveolar nerve (IAN) being one of the largest concerns. PRESENTATION OF CASE: This case report presents an impacted third molar with associated dentigerous cyst in which the IAN is externalised and runs along the lateral surface of the mandible. DISCUSSION: This is an extremely rare anatomical variation with most IANs lying inferior and lingually to third molars...
January 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28145089/the-relationship-between-diet-and-tooth-complexity-in-living-dentigerous-saurians
#10
Keegan M Melstrom
Living saurian reptiles exhibit a wide range of diets, from carnivores to strict herbivores. Previous research suggests that the tooth shape in some lizard clades correlates with diet, but this has not been tested using quantitative methods. I investigated the relationship between phenotypic tooth complexity and diet in living reptiles by examining the entire dentary tooth row in over 80 specimens comprising all major dentigerous saurian clades. I quantified dental complexity using orientation patch count rotated (OPCR), which discriminates diet in living and extinct mammals, where OPCR-values increase with the proportion of dietary plant matter...
January 31, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28123497/odontogenic-epithelial-proliferation-is-correlated-with-cox-2-expression-in-dentigerous-cyst-and-ameloblastoma
#11
Mohammed Amjed Alsaegh, Hitoshi Miyashita, Takahiro Taniguchi, Sheng Rong Zhu
Investigation of cyclooxygenase (COX)-2 in dentigerous cyst and ameloblastoma may help to improve understanding of the nature and behavior of odontogenic cysts and tumors, and in addition may eventually represent a definitive target for a pharmacological approach in the management of these lesions. The aim of this study was to evaluate COX-2 expression and its correlation with the proliferation of odontogenic epithelium in these lesions. Dentigerous cysts (n=16) and ameloblastomas (n=17) were evaluated. Detection of Ki-67 and COX-2 protein expression was conducted by immunohistochemistry...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28060370/diagnosing-the-most-common-odontogenic-cystic-and-osseous-lesions-of-the-jaws-for-the-practicing-pathologist
#12
Robert A Robinson
Odontogenic cysts and osseous lesions are often seen as challenging diagnostic lesions but the majority of them are easily classified. This article outlines the diagnostic features required for separating the most common of odontogenic cysts and select osseous lesions of the jaws. Clinical and radiographic findings of these jaw lesions often lead to a differential diagnosis that only the histologic findings will clarify. Dentigerous cyst, keratocystic odontogenic tumor, and certain ameloblastomas that have cystic change, may have identical radiographic findings, with only separation by their specific histologic features leading to the significantly different treatments required for each...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28054463/kallikrein-related-peptidase-expression-in-odontogenic-cysts-and-tumors-an-immunohistochemical-comparative-study
#13
Mark Roger Darling, Rebecca Woodford, Karl Kevin Cuddy, Linda Jackson-Boeters, Alyssa Hayter, Jeyanth Inkaran, Eleftherios P Diamandis, Zia Khan
AIM: The aim of the present study was to profile the expression of human kallikrein (KLK)-related peptidases (KLK) in odontogenic lesions. METHODS: Paraffin-embedded, formalin-fixed, non-odontogenic (control) and odontogenic lesions were stained for KLK using a standard immunohistochemical technique. The intensity and proportion of epithelial cells stained was scored. Reverse transcription-polymerase chain reaction was utilized to evaluate KLK 1-15 mRNA expression in ameloblastomas...
January 4, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28027172/an-uncommon-occurrence-of-three-fourth-molars-concomitant-to-hypodontia-in-a-nonsyndromic-patient
#14
Ligia Buloto Schmitd, Agnes Assao, Gabriel Ramalho-Ferreira, Leonardo Perez Faverani, Denise Tostes Oliveira
Bilaterally mandibular and maxillary fourth molars, concomitant to hypodontia, are uncommon. These dental anomalies, called hypohyperdontia, are rare and etiology is not well defined. Several complications may occur as a consequence of supernumerary teeth, such as teeth impaction, resorption of adjacent teeth, and development of cysts and tumors. The authors present an uncommon occurrence of three-fourth molars concomitant to hypodontia and dentigerous cyst associated with impacted mandibular second and third molars in a nonsyndromic patient...
December 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28025428/expression-of-p73-and-trail-in-odontogenic-cysts-and-tumors
#15
Marco Mascitti, Andrea Santarelli, Antonio Zizzi, Maurizio Procaccini, Lorenzo Lo Muzio, Corrado Rubini
Odontogenic tumors are a group of lesions arising from the odontogenic apparatus. Although the mechanism of oncogenesis and tumor progression in these lesions remains unknown, certain proteins, such as those involved in apoptosis, seem to be involved in the differentiation and proliferation of odontogenic epithelial cells. The aim of this study was to analyze the expression of p73 and TNF-related apoptosis-inducing ligand (TRAIL) in odontogenic tumors and cysts, and to clarify changes in the expression of these proteins...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27974959/a-10-year-retrospective-analysis-of-64-cases-of-cystic-lesions-of-the-oral-and-maxillofacial-region-in-a-nigerian-tertiary-hospital
#16
Benjamin Fomete, Otasowie Daniel Osunde, Joseph Ogbeifun, Rowland Agbara, Charles Ndubissi Ononiwu
OBJECTIVES: Orofacial cysts are broadly divided into odontogenic and nonodontogenic types, epithelial or non-epithelial, and developmental or inflammatory in origin. The odontogenic cyst is an osseous-destructive lesion that most commonly affects the jaw. It is formed by activation of odontogenic cell rests entrapped within the bone or gingival tissue of the jaws, such as the epithelial remains of Malassez, the dental lamina (cell rests of Serres), or the enamel organ. METHODS: We performed a retrospective study of all histologically diagnosed cysts of the orofacial region seen at the Maxillofacial clinic of the Ahmadu Bello University Teaching Hospital, Nigeria, between January 2003 and December 2012...
November 2016: Oman Medical Journal
https://www.readbyqxmd.com/read/27941544/large-dentigerous-cyst-associated-to-maxillary-canine
#17
João Paulo Bonardi, Pedro Henrique Silva Gomes-Ferreira, Leonardo de Freitas Silva, Gustavo Antonio Correa Momesso, Danila de Oliveira, Sabrina Ferreira, Rodrigo Dos Santos Pereira, Francisley Ávila Souza
Dentigerous cysts are defined as a cyst originated by separation of the follicle of dental crown of a tooth unerupted. Although most dentigerous cysts are considered developmental cysts, some cases seem to have an inflammatory origin. The aim of this study was to show a case of an 8-year-old patient, male, presenting a lesion in maxilla with large proportions. Computed tomography scans showed a hypodense image, well-defined, associated to unerupted teeth. The case was treated by enucleation of the lesion under local anesthesia...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27935113/fak-is-overexpressed-in-keratocystic-odontogenic-tumor-a-preliminary-study
#18
Sachin C Sarode, Gargi S Sarode, Shakira Choudhary, Shankargouda Patil
BACKGROUND: Focal adhesion kinase (FAK) is an important mediator of cell adhesion, growth proliferation, survival, angiogenesis, and migration. FAK is over expressed in many locally invasive and malignant lesions including oral cancer. Looking at the tumorigenic nature of keratocystic odontogenic tumor (KCOT), which involves local invasion, proliferation, and recurrence, we hypothesized strong expression of FAK in the epithelial lining of KCOT. MATERIALS AND METHODS: 34 KCOTs, 11 orthokeratinized odontogenic cysts (OOCs), 25 radicular cysts (RCs), 17 dentigerous cysts (DCs) and 25 dental follicles (DFs) were retrieved from archives and subjected to the immunohistochemical analysis using FAK antibody...
December 9, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27923382/ectopic-third-molars-in-the-sigmoid-notch-etiology-diagnostic-imaging-and-treatment-options
#19
Marcel Hanisch, Leopold F Fröhlich, Johannes Kleinheinz
BACKGROUND: The etiology of ectopic third molars located in the sigmoid notch of the mandible is unclear. Only a few cases have been reported. The aim of this article is to discuss the etiology as well as treatment options and diagnostic imaging techniques. METHODS: A PubMed and Medline search of the literature from 1965 to 2015 to ectopic third molars in the mandibular notch was performed. Furthermore, a clinical case provided by the authors is reported. RESULTS: Among the eight reviewed cases, two male and six female patients were affected that ranged from 25 to 62 years of age (mean 48...
December 6, 2016: Head & Face Medicine
https://www.readbyqxmd.com/read/27882603/establishment-and-characterization-of-a-cell-population-derived-from-a-dentigerous-cyst
#20
Marcos A Muñiz-Lino, Mariana Rodríguez-Vázquez, Bibiana Chávez-Munguía, Josué Z Ortiz-García, Lorena González-López, Fidel C Hernández-Hernández, Carlos Licéaga-Escalera, Alejandro García-Muñoz, Mario A Rodríguez
BACKGROUND: Dentigerous cyst occurs in approximately 20% of jaw cysts, being the second major common odontogenic cyst, after radicular cyst. This oral lesion has the ability to destroy maxillary bones and could be the origin of several odontogenic tumors. However, molecules implicated in its pathogenesis as well as those involved in its neoplastic transformation remain unknown. Here, we established a cell population derived from a dentigerous cyst as an in vitro model for the study of this oral lesion...
November 24, 2016: Journal of Oral Pathology & Medicine
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