267 a Assistant Professor, Karadeniz Technical University, Department of Orthodontics, Trabzon, Turkey. b Associate Professor and Chair, Department of Orthodontics, Faculty of Dentistry, Erciyes University, Kayseri Turkey, and Visiting Professor, King Saud University, Riyadh, Saudi Arabia. c Associate Professor, Karadeniz Technical University, Department of Operative Dentistry, Trabzon, Turkey....

Tooth development results from a complicated multistep interaction between the oral epithelium and the underlying mesenchymal tissue. Abnormal tissue interactions during tooth development may potentially result in ectopic tooth development and eruption. We report a case of unerupted second molar and impacted third molar and an attempt is made to review possible causes of noneruption of teeth an...

Dentigerous cysts, commonly encountered in the practice of dentistry, are benign odontogenic cysts associated with crowns of unerupted and/or impacted permanent teeth. They frequently occur during the second and third decades of life. Treat-ment modalities range from enucleation to marsupialization, which may be influenced by the age of the patient, severity of impaction, and root form of assoc...

We describe significant brain, craniofacial, and dental lesions in a free-ranging wolf (Canis lupus) involved in a human attack. On postmortem examination, the wolf presented asymmetric atrophy and bone remodeling affecting the mandible, incisive, maxilla, lacrimal, palatine, frontal, and ethmoid bones. There was an asymmetrical skeletal malocclusion and dental abnormalities including rotated, ...

Odontomas are hamartomatous lesions composed of various dental tissues, i.e., enamel, dentin, cementum and sometimes pulp. They are the most common benign odontogenic tumours, constituting 22% of all odontogenic tumours of the jaw. They are slow-growing, benign tumours showing nonaggressive behaviour. They are usually asymptomatic and are often discovered during routine radiography. We report a...

introdouction: dentigerous cyst is a benign developmental lesion of the jaw. it is most commonly occurs during the second and third decades of life and has rarely been reported in association with a deciduous tooth. we report a case of two-year old girl who presented with an unerupted central incisor. according to the radiographic findings, she was diagnosed with a dentigerous cyst and underwen...

A ten year old boy came with a chief complaint of unerupted permanent maxillary right central incisor. Deciduous right central and lateral incisors were retained. Radiographic examination revealed an inverted and dilacerated mesiodens with the root bent over the incisal surface of the right central incisor preventing its eruption. An occlusal radiograph and radiographs using shift cone techniqu...

An extremely rare case is reported where monozygotic twin sisters, with a mesiodens in each and impacted unerupted upper left incisor, show a high degree of co-twin concordance. Since 1963, two analogous cases of monozygotic twin sisters have only been recorded, and six analogous cases of monozygotic twin brothers. The high degree of concordance observed seems to indicate that the sisters have ...

Dentigerous cysts are common odontogenic cysts that are associated with the crown of the tooth and typically develop from single lesions. Bilateral and multiple dentigerous cysts are very rare and occur in patients with syndromic conditions. This paper presents a case report of a 15-year-old male patient that experienced non-syndromic bilateral dentigerous cysts that simultaneously occurred in ...

Dentigerous cyst is a development odontogenic cyst, which apparently develops by accumulation of fluid between reduced enamel epithelium and the tooth crown of an unerupted tooth. It is one of the most prevalent types of odontogenic cysts associated with an erupted, developing or impacted tooth, particularly the mandibular 3rd molars, the other teeth that are commonly affected are maxillary can...