Cases reported "Tooth, Impacted"

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1/171. Inverted impaction of a mesiodens: a case report.

    Dental, radiological, dermatoglyphic and genetic findings of a patient showing inverted impaction of a mesiodens are presented. It is probable that the inversion of the mesiodens was caused by contact of the incisal edge of the crown of the mesiodens by the apex of the root of the erupting right maxillary central incisor tooth.
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2/171. Marsupialization of a cyst lesion to allow tooth eruption: a case report.

    Marsupialization of a dentigerous cyst allowed eruption of a tooth related to the cyst cavity.
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3/171. Unerupted second primary mandibular molar positioned inferior to the second premolar: case report.

    This report is a clinical case of a 7-year-old child who presented right impacted second primary mandibular molar. This tooth was positioned inferior to the second premolar successor and a supernumerary tooth superior to the second premolar. Clinical examination did not reveal systemic diseases ot trauma in the facial region. Treatment consisted of the extraction of the impacted second primary molar and the supernumerary tooth. Periodic examination was indicated for follow-up.
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4/171. Spontaneous uprighting of permanent tooth germs after elimination of local eruption obstacles.

    Four clinical cases are presented to demonstrate the self-correcting potential of aberrant tooth germs after the elimination of eruption obstacles (in 2 cases cysts, in 2 other cases severely infraoccluded primary teeth). In the case of the submerging deciduous teeth, the tilted adjacent teeth were orthodontically uprighted after the surgical procedure. Possible causative mechanisms are discussed.
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keywords = tooth germ, tooth, germ
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5/171. Radiographic localization of unerupted maxillary anterior teeth using the vertical tube shift technique: the history and application of the method with some case reports.

    The preferred means of radiographic localization is the parallax method introduced by Clark in 1910. He used 2 periapical radiographs and shifted the tube in the horizontal plane. In 1952, Richards appreciated that a vertical tube shift could also be carried out. No major changes then occurred in the technique until Keur, in australia, in 1986 replaced the periapical radiographs with occlusal radiographs. This modification enables a greater tube movement and therefore a greater shift of the image of the impacted tooth; it also ensures that the whole of the tooth is captured on the radiograph. For the vertical tube shift, Keur introduced the use of a rotational panoramic radiograph with an occlusal radiograph. In 1987, Southall and Gravely discussed this vertical tube shift combination in the English dental literature, and it is now the preferred combination of radiographs for localizing impacted maxillary anterior teeth. Jacobs introduced this method to the American literature in 1999, but it has yet to gain acceptance in the continental European literature. Jacobs recommended, when using this combination, to routinely increase the vertical angulation for the occlusal radiograph by 10 degrees to achieve a greater image shift. Four case reports are presented in this article. Three have photographs taken at surgical exposure to illustrate how the position of the impacted tooth can be accurately predicted by appropriate interpretation of the radiographs.
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6/171. The surgical uncovering and orthodontic positioning of unerupted maxillary canines.

    1. The presence of the maxillary canine is vital to the function and esthetics of the dental complex. The availability of this tooth must be carefully considered during an orthodontic diagnosis. Lack of space is the most common cause of canine impaction. Other contributing factors are that this tooth has the longest period of developmenent and that it is bigger longer, and travels farther while erupting than any other tooth. 2. Proper management of unerupted canines is a challenge to the dental practitioner. Maxillary canines are found impacted to both the buccal and the lingual. Palatal impactions are much more common than labial impactions, but, of the two, labial impactions are more difficult to manage. 3. An appropriate surgical procedure which opens to the crowns of unerupted teeth is a key to uneventful orthodontic positioning of these teeth. Packing the follicular space with baseplate gutta-percha and keeping the crown open to the oral cavity with surgical WondrPak is an effective method of making the tooth erupt into the oral cavity. 4. Modern preformed bands and improved cements make the placement of attachment on malposed teeth relatively easy. Direct bonding techniques are also of value in the management of unerupted teeth. 5. It is practical to move teeth orthodontically from seemingly impossible positions into ideal alignment. Such teeth will function normally, and no evidence will be left of their original position or of their having been moved over long distances.
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7/171. Immediate placement of implants in extraction sites of maxillary impacted canines.

    BACKGROUND: Treatment of asymptomatic impacted maxillary canines in adults is inevitable when primary canine becomes lost through extraction or exfoliation or when the impacted tooth becomes symptomatic. Treatment alternatives include an orthodontic procedure to bring the unerupted tooth to the dental arch or prosthetic replacement of the missing tooth. The authors describe an alternative treatment that involves immediate placement of implants into extraction sockets of the teeth. CASE DESCRIPTION: A patient with bilateral palatally impacted upper canines chose to have the unerupted teeth removed and replaced with implants and crowns. Two hydroxyapatite cylindrical implants were inserted through the alveolar ridge into the extraction sites. The unfilled areas in the extraction sites, around the dental implants, were packed and covered with demineralized freeze-dried bone allograft in conjunction with a collagen membrane barrier. Six months after implantation, computed tomography revealed complete osseous fill of the extraction defects and no bone loss around the implants. The implants were uncovered, and porcelain-fused-to-metal restorations were fabricated and placed. CLINICAL IMPLICATIONS: This treatment modality avoids the need for conventional preparation of teeth as part of prosthetic reconstruction or prolonged orthodontic treatment aimed at bringing the impacted canine to the dental arch. Combining the implantation with bone augmentation preserved the alveolar bone and shortened the treatment period.
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keywords = tooth
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8/171. Benign cementoblastoma.

    An unusual case of cementoblastoma is presented. It is the second case to be published demonstrating involvement of the pulp, and it is the first instance of a cementoblastoma that appears to have evolved from an impacted tooth. A review of the literature substantiates the fact that this lesion may not be so uncommon as was previously thought, and that pain and facial asymmetry may be significant clinical features.
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keywords = tooth
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9/171. Misdiagnosis of an impacted supernumerary tooth from a panographic radiograph.

    A panographic radiograph of a 31-year-old man revealed the presence of an impacted supernumerary paramolar. Periapical radiographs of the same area failed to confirm the existence of this supernumerary tooth. A review of the inherent distortion factors present in panographic radiography leading to the misdiagnosis is discussed.
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ranking = 5
keywords = tooth
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10/171. Atypical migration of an impacted lower third molar.

    This report describes the atypical migration of an impacted lower third molar tooth in a 42-year-old woman. Serial radiographs showed that, over a period of 13 years, the tooth migrated from its original disto-angular position posterior to and beneath the roots of the adjacent second molar to a more horizontal position beneath the roots of the first permanent molar. The tooth was surgically removed under general anaesthesia, with biopsy and curettage of soft tissue found in the bone posterior to the tooth along the path of migration. This pattern of tooth movement is highly unusual in an adult patient.
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ranking = 5
keywords = tooth
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