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G Royer, R Lan, J Garçonnet, F Cheynet
INTRODUCTION: The ameloblastic fibro-odontoma (FOA) is a rare benign tumor representing 1-3% of odontogenic tumors. The FOA affects young patients before the age of 20. Surgical treatment allows usually for recovery. Recurrence and malignant transformation are possible. OBSERVATION: A 3-year-old patient, with no medical and surgical history, was referred for a painless swelling of the right cheek progressing for several months. Radiographic examination showed a large mixed lesion...
November 2, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
Shubha Ranjan Dutta, Deepak Passi, Sarang Sharma, Purnima Singh, Musharib Ahmed
No abstract text is available yet for this article.
September 2016: Journal of Clinical and Diagnostic Research: JCDR
Hamed Mortazavi, Maryam Baharvand
This review article aimed to introduce a category of jaw lesions associated with impacted tooth. General search engines and specialized databases such as Google Scholar, PubMed, PubMed Central, MedLine Plus, Science Direct, Scopus, and well-recognized textbooks were used to find relevant studies using keywords such as "jaw lesion", "jaw disease", "impacted tooth", and "unerupted tooth". More than 250 articles were found, of which approximately 80 were broadly relevant to the topic. We ultimately included 47 articles that were closely related to the topic of interest...
September 2016: Imaging Science in Dentistry
Yogesh J Kale, Prasanna T Dahake, Prasannakumari S Patil, Mahesh V Dadpe
The purpose of this paper is to describe the case of surgical management of massive compound odontoma with 36 denticles in a 9-year-boy who presented with a complaint of pain and swelling in mandibular left posterior region and retained 74. The denticles were removed after the removal of retained 74 completely and wound healing was observed. Odontomas are considered as hamartomatous dental malformation rather than true neoplasm of odontogenic origin. They are the most commonly occurring abnormally formed dental tissues that interfere with eruption of associated teeth...
July 2016: Contemporary Clinical Dentistry
Mehmet Ali Altay, Beste Ozgur, Zafer C Cehreli
Odontomas are the most common benign odontogenic tumors of the oral cavity; however, their occurrence in the primary dentition is an extremely rare condition. When associated with primary teeth, odontomas may lead to disturbances in tooth eruption, which often requires a multidisciplinary treatment approach. The purpose of this paper is to review the literature on odontomas of the primary dentition and discuss the management of a compound odontoma in a pediatric patient.
2016: Journal of Dentistry for Children
Maria Hovorakova, Katerina Lochovska, Oldrich Zahradnicek, Kristina Domonkosova Tibenska, Michaela Dornhoferova, Lucie Horakova-Smrckova, Silvia Bodorikova
The area of the oral vestibule is often a place where pathologies appear (e.g., peripheral odontomas). The origin of these pathologies is not fully understood. In the present study, we traced a cell population expressing Sonic hedgehog (Shh) from the beginning of tooth development using Cre-LoxP system in the lower jaw of wild-type (WT) mice. We focused on Shh expression in the area of the early appearing rudimentary incisor germs located anteriorly to the prospective incisors. The localization of the labelled cells in the incisor germs and also in the inner epithelial layer of the vestibular anlage showed that the first very early developmental events in the lower incisor area are common to the vestibulum oris and the prospective incisor primordia in mice...
2016: PloS One
Santanu Patsa, Riteshkumar Baldevbhai Jadav, Gopal Chandra Halder, Jay Gopal Ray, Sila Datta, Tushar Deb
CONTEXT: Ameloblastoma is the second most common odontogenic tumor after odontoma which occurs exclusively in the jaws and very rarely in the sinonasal cavities. AIMS: The aim of the study was to determine the demographic and histopathological variations of ameloblastoma in Eastern Indian population by retrospectively comparing and evaluating diagnosed cases of ameloblastoma using different parameters. MATERIALS AND METHODS: Histopathologically diagnosed cases of ameloblastoma retrieved from past records of the Department of Oral Pathology were selected for the study...
May 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Antti Kirjavainen, Veikko Tuovinen, George K Sándor
BACKGROUND: Odontogenic tumors such as ameloblastic fibro-odontoma (AFO) are rare conditions in children and are often asymptomatic. AFOs are found by routine clinical and radiological examination or when they cause obvious intra- or extra-oral swelling. MATERIALS AND METHODS: A case of an AFO in a 7-year-old girl is described, and 107 cases from the literature and this report are analyzed. RESULTS: The total of 108 cases revealed the average age at presentation of AFO to be 6...
January 2016: Annals of Maxillofacial Surgery
Katsuhiro Uzawa, Atsushi Kasamatsu, Tomoaki Saito, Toshikazu Takahara, Yasuyuki Minakawa, Kazuyuki Koike, Masanobu Yamatoji, Dai Nakashima, Morihiro Higo, Yosuke Sakamoto, Masashi Shiiba, Hideki Tanzawa
Because of cellular senescence/apoptosis, no effective culture systems are available to maintain replication of cells from odontogenic tumors especially for odontoma, and, thus, the ability to isolate human odontoma-derived cells (hODCs) for functional studies is needed. The current study was undertaken to develop an approach to isolate hODCs and fully characterize the cells in vitro. The hODCs were cultured successfully with a Rho-associated protein kinase inhibitor (Y-27632) for an extended period with stabilized lengths of the telomeres to sustain a similar phenotype/property as the primary tumoral cells...
September 10, 2016: Experimental Cell Research
Elisabetta Mancinelli, Vittorio Capello
The order Rodentia comprises more than 2000 species divided into 3 groups based on anatomic and functional differences of the masseter muscle. Myomorph and sciuromorph species have elodont incisors and anelodont cheek teeth, unlike hystrichomorph species which have full anelodont dentition. Diseases of incisors and cheek teeth of rat-like and squirrel-like rodents result in a wide variety of symptoms and clinical signs. Appropriate diagnostic testing and imaging techniques are required to obtain a definitive diagnosis, formulate a prognosis, and develop a treatment plan...
September 2016: Veterinary Clinics of North America. Exotic Animal Practice
Ankita Arora, Preethy Mary Donald
No abstract text is available yet for this article.
2016: BMJ Case Reports
Cínthia Magalhães Ribeiro, Tatiana Tavares Marcelino Dos Santos, Sérgio Roberto de Castro, Marina Lara de Carli, Felipe Fornias Sperandio, João Adolfo Costa Hanemann, Alessandro Antônio Costa Pereira
Ameloblastic fibro-odontoma (AFO) is a mixed odontogenic tumor that presents epithelial and mesenchymal components. Ameloblastic fibro-odontoma is generally diagnosed between the first and second decades of life and normally shows a slow clinical growth in the posterior portion of the maxilla or mandible, being mostly associated with 1 or more impacted teeth. Radiographic features of AFO show a radiolucent well-defined, uni, or multilocular defect due to containing variable amounts of calcified material. The enucleation of the tumor is the usual conduct and should be followed up for a long period of time...
September 2016: Journal of Craniofacial Surgery
Adarsh Kudva, A Chithra, Nirmala N Rao, K M Cariappa
Odontomas are the most common odontogenic tumors of the oral cavity which are nonaggressive, hamartomatous in nature consisting of enamel, dentin and cementum. They are called as composite because they contain more than one type of tissue. They are generally asymptomatic, hence recognised on routine radiologic examination. The compound odontoma is composed of multiple small tooth like structures, whereas the complex odontoma consists of a conglomerate mass of enamel and dentine, which bears no anatomical similarity to the tooth...
July 2016: Journal of Maxillofacial and Oral Surgery
Paul Covello, Daniel Buchbinder
PURPOSE OF REVIEW: The management of benign, locally aggressive odontogenic tumors, namely, keratocystic odontogenic tumors (KOTs) and ameloblastomas, can be challenging. The purpose of this article is to briefly summarize important features of these lesions and review recent trends in the literature regarding their treatment. RECENT FINDINGS: Currently, KOTs are frequently treated with a conservative approach consisting of enucleation and adjuvant decompression or local microablation with peripheral ostectomies, Carnoy's solution, or cryotherapy...
August 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
Mehdi Ghandehari-Motlagh, Zahra Khosravi, Ghasem Meighani, Yahya Baradaran-Nakhjavani
INTRODUCTION: Ameloblastic fibro-odontoma (AFO) is defined as a benign odontogenic tumor with slow growing behavior. Its prevalence is rare. AFO is characterized by histologic features of ameloblastic fibroma (AF) with the formation of enamel and dentine. CASE PRESENTATION: This is a case report of AFO accompanied with a number of impacted deciduous teeth and its management in a 4-year old boy. Examination of oral cavity revealed an extensive swelling from midline to left deciduous maxillary first molar, covered with normal mucosa...
April 2016: Iranian Journal of Pediatrics
Shilpy Singla, Sachin Gupta
Canine deviation from its path of eruption is usually followed by either delayed or impaction of canine. One of the important and not so noticed reasons for canine displacement is formerly impacted central incisor. The difference in age of eruption of these two teeth is 4 years; however, the absence of maxillary incisor should be perceived with utmost conviction about impending canine displacement leading to its impaction as well. This case presents similar picture where composite, compound odontoma with respect to maxillary central incisor led to its impaction resulted in deviated path of eruption for erupting canine...
April 2016: Contemporary Clinical Dentistry
L A N Santos, L J Lopes, G D Roque-Torres, V F Oliveira, D Q Freitas
Odontomas are the most common benign tumors of odontogenic origin. They are normally diagnosed on routine radiographs, due to the absence of symptoms. Histopathologic evaluation confirms the diagnosis especially in cases of complex odontoma, which may be confused during radiographic examination with an osteoma or other highly calcified bone lesions. The micro-CT is a new technology that enables three-dimensional analysis with better spatial resolution compared with cone beam computed tomography. Another great advantage of this technology is that the sample does not need special preparation or destruction in the sectioned area as in histopathologic evaluation...
2016: Case Reports in Dentistry
Zhang Lina, Shen Ting, Niu Haoman, Geng Ning, Tang Yaling, Chen Yu
A case diagnosed as ossifying fibroma and compound odontoma in the mandible was reported. The clinicopathological features, diagnosis, and treatment were discussed with the literature review.
February 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
Merva Soluk Tekkesin, Elif Bahar Tuna, Vakur Olgac, Nihan Aksakallı, Canan Alatlı
OBJECTIVES: Pediatric odontogenic lesions are rare clinical entities and are not well addressed in the otolaryngology literature. Knowledge of the biologic and clinical behavior of these lesions and their basic features such as location and age are key aspects for otolaryngologists in developing an early clinical differential diagnosis, such that they can provide adequate treatment. METHODS: Six thousand histologically-diagnosed odontogenic lesions from a 40-year period were reviewed...
July 2016: International Journal of Pediatric Otorhinolaryngology
G Girish, Radhika M Bavle, Manish Kumar Singh, Sahana N Prasad
The term odontoma has been used as a descriptor for any tumor of odontogenic origin. It is a growth in which both epithelial and mesenchymal cells exhibits complete differentiation. Odontomas are considered as hamartomas rather than true neoplasm. They are usually discovered on routine radiographic examination. Odontomas, according to the World Health Organization, are classified into complex odontoma and compound odontomas. The present paper reports a case of compound composite odontomas.
January 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
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