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At least 109 records · Page 6Linked to original sources
PubMed1999

Odontogenic fibroma.

The odontogenic fibroma is a rare tumor that has generated controversy, perhaps disproportionately to its importance in the family of odontogenic tumors. The clinical and radiographic features are well documented but the histologic aspects have generated controversy. The behavior is benign, and published accounts indicate a low recurrence rate following treatment by curettage. The tumor recognized by the World Health Organization (WHO) is the legitimate odontogenic fibroma. Histologic variants include the granular cell type and the hybrid odontogenic fibroma giant cell-like tumor. Although the extraosseous "peripheral" odontogenic fibroma presents as a gingival enlargement clinically indistinguishable from other gingival lesions, its histomorphology is similar to the central tumor. A normal dental follicle around the crown of an unerupted tooth may histologically mimic the odontogenic fibroma and other odontogenic tumors.

Diagnosis, Differential↗
PubMed2002

Multidisciplinary evaluation and clinical management of mesiodens.

Supernumerary teeth are a disorder of odontogenesis relatively common in the oral cavity and characterized by an excess number of teeth. The term mesiodens is used to refer to an unerupted supernumerary tooth in the central region of the premaxilla between the two central incisors. The complications associated with mesiodens include: lack of eruption of permanent teeth, the deviation of the eruption path, rotations, retention, root re-absorption and pulp necrosis with loss of vitality, and diastema. Early detection of mesiodens is most important if such complications are to be avoided. This report describes the treatment of a maxillary central incisor impacted by a mesiodens. The case initially required only surgical treatment, to remove the supernumerary tooth. Successively, orthodontic therapy was done to bring into position the left permanent central incisor, which erupted physiologically, but rotated 90 degrees around along its long axis.

Child↗
PubMed2003

Case report: two nasal floor compound odontomas associated with impacted maxillary incisor.

AIM: The purpose of this report is to describe the logical sequence of treatment in a case of a six year old caucasian female patient with two nasal floor compound odontomas, that delayed eruption of a maxillary permanent incisor. TREATMENT: The odontomas were surgically removed. However, as the maxillary incisor did not erupt spontaneously, after a suitable period of observation, an orthodontic treatment approach was adopted. This was to obtain an adequate space for the unerupted tooth and to move it to its normal position. CONCLUSION: Early diagnosis and surgical intervention of supernumeraries is therefore necessary and treatment of an impacted tooth may require an orthodontic appliance.

Child↗
PubMedDate not supplied

Clinical and radiologic behaviour of ameloblastoma in 4 cases.

Ameloblastoma is a benign but locally aggressive epithelial odontogenic neoplasm. It represents 1% of all tumours of the jaw bone. In 80% of cases, it is localized in the mandibular molar and ascending ramus area, mostly associated with an unerupted tooth. It occurs over a wide range of ages (mean age is in the 20s or 30s) and with equal frequency in men and women. Ameloblastoma may be discovered during a routine radiographic examination or as a clinically observed developing mass. It has a characteristic, but not diagnostic, radiographic appearance. It can be treated by enucleation, bone curettage or wide resection. The rate of local recurrence is high when it is treated inadequately. We describe the clinical and radiologic behaviour of ameloblastoma and discuss treatment protocols and the possibility of conservative management of this tumour. Our results suggest the importance of long-term follow-up with various radiographic techniques.

Adolescent↗
PubMed2005

[The follicular cyst of the mandibula--case report].

Cyst is a pathological cavity which is surrounded by capsule and filled with matter of different compactness and composition. Cysts may originate in bones and in soft tissues. We are describing the case of the follicular cyst of the mandibula diagnosed for a 55 years old female patient. After diagnosis based on clinical, laryngological examination, computerized tomography, amber-coloured fluid in aspiration biopsy, the cyst and the unerupted tooth were surgically removed. Now the patient is under laryngological care.

Female↗
PubMed1991

Clinico-radiological aspects of dentigerous cysts.

The clinico-radiological features of 10 dentigerous cysts occurring in 6 patients are described. Dentigerous cysts are odontogenic cysts and may present directly as a painless jaw swelling or indirectly as an unerupted tooth. Radiologically, these cysts present as a pericoronal unilocular expansile translucencies the width of which exceeds 2.5 mm, with mandibular involvement predominating. Radiology plays an important role in detecting multiple cysts in a case presenting with a single cyst and also in detecting clinically asymptomic cysts in cases with delayed or non eruption of the teeth.

Adolescent↗
PubMed1990

Supernumerary teeth in the premaxillary region: its effects on the eruption and occlusion of the permanent incisors.

The presence of supernumerary teeth in the premaxillary region may cause a variety of pathological effects. This study was carried out to determine the various aspects of supernumerary teeth in the premaxillary region, particularly the effects of the supernumerary teeth on the permanent incisors and surrounding tissues. Approximately 20 percent of the patients (n = 49) with supernumerary teeth did not present with any abnormality. A high proportion of patients (37.9 percent) had delayed or failure of eruption of permanent teeth and 24.1 percent had rotation or displacement of permanent teeth. Other effects observed were median diastema and cystic changes around the unerupted supernumerary tooth. The high proportion of pathological effects seen showed that early diagnosis of the anomaly is important to intercept damage to the adjacent normal teeth and surrounding tissues. However, no cases of root resorption of the permanent teeth due to the presence of supernumeraries were observed.

Adolescent↗
PubMed1989

[Myxofibroma of the mandible].

In this article, a rare case of large myxofibroma of the mandible has been presented. The odontogenic myxoma originated from the mesenchym ise benign and can be arised from dental papilla, dental follicle or the periodontal ligament. Myxoma is mostly located in maxilla or mandible and accompanied by an unerupted tooth and can be seen in the second or third decade of the life. It is painless and uncapsulated and the growth of tumor is slow. Since it is uncapsulated, recurrence is about 25%. Myxoma can be confused radiologically with benign or malign lesions of jaws which are radiolucent in nature. Curretting, cauterization and resection are methods of treatment and the prognosis is good.

Adolescent↗
PubMed1994

A scanning electron microscope investigation of calcium fluoride-like material deposited during topical fluoride exposure on sound human enamel in vitro.

1. The morphological aspects of globules deposited in vitro when a NaF solution is applied to sound human enamel were studied by scanning electron microscopy. 2. Particles, presumably of calcium fluoride-like material, formed on the surfaces of an unerupted tooth and consisted of subunits showing a "cauliflower" appearance, indicating agglomeration of even smaller particles. The number and size of the crystals increased with time of exposure. 3. These particles represent highly resistant fluoride reservoirs and may be of clinical significance.

Calcium Fluoride↗
PubMedDate not supplied

Calcifying odontogenic cyst in infancy: report of case associated with compound odontoma.

A case of calcifying odontogenic cyst associated with compound odontoma in an unerupted primary tooth in a three-year-old patient is reported. Some considerations regarding the age of the patient, differential diagnosis and treatment are discussed. Although the cyst can occur at any age, the majority of cases appear before the fourth decade of life. This malady represents less than 2 percent of all odontogenic tumors and cysts.

Child, Preschool↗
PubMed2003

The effect of changes in tooth position of unerupted canines on cephalograms.

Although many radiographic procedures have been described to localize an impacted canine, they all submit the patient to extra radiation. The purpose of the entire study was to evaluate if the combined interpretation of cephalograms and dental panoramic tomograms (DPTs), which are used in orthodontic practice, can provide adequate information as to the position of impacted canines. In a previous study the radiographic image of impacted canines on DPTs was evaluated. In this investigation, the effect of changes in position and inclination of an impacted canine on cephalograms was studied in an experimental set-up. An upper canine was removed from a human skull and placed in a positioning device to imitate various positions of impaction. Starting from a buccally impacted position, three different displacements were simulated: 10 mm frontally, 10 mm sagittally, and 5 mm vertically. In each of these positions nine different changes in inclination (in the sagittal and the frontal plane) were registered, resulting in 36 different cephalographic exposures. Analysis revealed the following: the degree of vertical and sagittal displacement of the incisal point of the impacted canine, the angulation of the tooth as well as the tooth length, measured on a cephalogram, appeared to give an accurate representation of the experimental set-up. Combining these findings and those from the previous study, it became possible to define a series of points to enable an adequate three-dimensional (3D) estimation of the canine's position. A clinical case of an impacted canine is used as an illustration of this experimental set-up.

Cephalometry↗
PubMed2006

An unusual developmental disturbance of an unerupted permanent incisor due to trauma to its predecessor - a case report.

Developmental disturbances of unerupted permanent tooth result from trauma to primary tooth as there is a close proximity between the root of the primary tooth and its permanent successor. The damage to the unerupted permanent tooth occurs by the transmission of traumatic forces to the permanent tooth germ. In the present case, however, a developmental disturbance on the permanent maxillary central incisor resulting from a direct effect of the inversely intruded primary maxillary central incisor is presented. The intruded tooth was extracted under general anesthesia. Upon eruption of the permanent central incisor, a localized crown malformation along with enamel hypoplasia which was not classified as a developmental disturbance before was observed. The damaged sites were restored with a light-cured composite resin.

Child, Preschool↗
PubMed2004

Impacted tooth in mandibular fracture line: treatment with closed reduction.

PURPOSE: Most mandibular fractures occur because of blunt trauma. In some cases, the mandible can be weakened by the presence of an unerupted or impacted tooth. The fate of this tooth in the fracture line and its effects on bone healing remain an important outcome event. MATERIALS AND METHODS: In this study, we analyzed the records of 117 patients with a total of 121 fractures having an unerupted tooth remaining in the fracture line who were treated and followed by the Dental Faculty of Ankara University between 1986 and 1996. All were open fractures, and none of the patients had a history of an acute inflammatory episode related to the unerupted tooth before the injury. Intermaxillary fixation was used in all cases. RESULTS: Three of the patients subsequently required open reduction with internal fixation. The unerupted tooth was not extracted in any patient. The fixation was maintained for an average of 45 days and followed up for 3 months. No complications were encountered. CONCLUSION: According to these results, we suggest that asymptomatic impacted teeth in the fracture line of uncomplicated mandible fractures do not cause delayed healing when treated with closed reduction.

Adolescent↗