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At least 1,657 records · Page 92Linked to original sources
PubMed1994

A case report of severe external resorption.

External root resorption is a multifactorial process with many causes. Except for transient surface resorption, it is usually considered an irreversible process. Treatment can arrest or retard the resorptive process. Many factors that have been associated with this process include physiologic resorption, local factors, systemic conditions, and idiopathic resorption. This case report documents a 29-year-old white male who suffered a motor vehicle accident and dental trauma nine years ago. The accident resulted in the lateral displacement of the maxillary right canine. The maxillary right lateral incisor, right central incisor and left central incisors were avulsed. The right central incisor was never recovered from the accident site. The other teeth were replanted 90 minutes after the accident and rigidly splinted for six months. They then received root canal treatment, approximately one month after the splint was removed (seven months from time of the trauma). On annual examination, the patient complained of a loose maxillary fixed prosthesis. He was diagnosed with severe external resorption on the right lateral and left central incisors, and severe external replacement resorption on the right canine. This case report reviews the current trends in the treatment of avulsed teeth and the resorptive process.

Adult↗
PubMedDate not supplied

Pyogenic granuloma as a cause of bone loss in a twelve-year-old child: report of case.

The pyogenic granuloma frequently appears between the ages of eleven and forty years. It is a benign soft tissue lesion of inflammatory origin, which may be misdiagnosed as a neoplastic tumor due to its rapid development. Definitive diagnosis can only be made by histopathologic examination. Treatment is by conservative local excision. The present manuscript reports on the diagnosis and treatment of such a lesion, which caused significant maxillary bone loss in a twelve-year-old child.

Abscess↗
PubMed1993

An analysis of causes of apical root resorption in patients not treated orthodontically.

With few exceptions, most cases of external apical root resorption have no evident etiology, particularly when root blunting from orthodontic treatment has been ruled out. This study determined the frequency of apical root resorption in the permanent dentition of patients who had not been treated orthodontically. Associations between the occurrence of external apical root resorption and three measures of oral health--number of missing teeth, periodontal probing depths, and alveolar crestal bone heights--were also examined. Between 7% and 10% of the 306 patients exhibited obvious apical resorption. Strong statistical associations were found between the occurrence of external apical root resorption and loss of teeth, increased periodontal probing depths, and reduced crestal bone heights; ie, root resorption was significantly more common in teeth with compromised support. Loss of stability from adjacent teeth, increased use of fewer remaining teeth, and loss of the root's anchorage in the bone are significant predictors of external apical root resorption.

Adolescent↗
PubMed1993

[Mechanism of the eruption of secondary dentition].

The second dentition is a process determined in space and time which presumes the presence of the permanent dental germ, its optimal position and the soundness of the periapical area. In absence of these conditions the clinically and histologically proved pathological phenomena (ex. the pathological triad of second dentition) can occur.

Child↗
PubMed1993

Tissue formation on cementum surfaces in vivo.

The purpose of the present investigation was to study cell colonization of and tissue formation on denuded (anorganic) cementum surfaces as well as denuded demineralized cementum surfaces. The most conspicuous finding was the distinctly different pattern of cell colonization and subsequent tissue formation on etched and non-etched denuded cementum surfaces. Non-etched cementum surfaces displayed a limited number of resorbing cells and resorption lacunae, while etched cementum surfaces displayed an abundance of fibroblast-like cells in varying stages of activity in a meshwork of fibres, probably collagenous. These fibres were organized in a layer parallel to the root surface. This appearance of a fibrous capsule-like structure has previously been associated with periodontal healing with a non-functional repair-tissue. It may be concluded, based on the present results that, a cementum surface in which collagen fibers have been exposed presents a suitable surface for colonization by mesenchymal cells. However, if collagen fibers are not exposed in the cementum surface leaving mineralized surface, mesenchymal cells appear not to be able to attach.

Acid Etching, Dental↗
PubMed1995

New guidelines.

Explore the source record for details and available documents.

Calcium Hydroxide↗
PubMed1995

Bilateral root-resorption of upper first permanent molars.

Root-resorption of first permanent molars by impacted premolars is generally considered to be rare, although a few cases have been reported. A case is presented, of bilateral root-resorption of upper first permanent molars by unerupted second premolars, and a number of clinical conclusions are discussed.

Bicuspid↗
PubMed1996

Treatment of a palatally impacted canine accompanied by root resorption of incisors: a case report.

This case report describes a simplified orthodontic system for the management of a palatally impacted canine accompanied by root resorption of incisors. The anchorage for this system is the transpalatal arch and a heavy buccal segment arch wire with two loops soldered to stainless steel bands. This type of stationary anchorage provides stability by uniting both molars across the palatal vault and thus avoids the need for bonding of adjacent mobile teeth. With this system an impacted canine can be extruded, moved distally, jumped over the occlusion, and derotated. The efficiency of this appliance makes it a safe method for moving teeth through simple manipulation and with minimal esthetic inconvenience.

Adolescent↗
PubMed1995

Generalized idiopathic apical root resorption as an incidental finding in an adolescent: a case history.

Generalized idiopathic apical root resorption is an unusual finding, especially in adolescents. This report describes a case in which the root resorption was an incidental finding in a patient referred for orthodontic treatment after suffering trauma to a central incisor. It emphasizes the need for adequate clinical and radiological examination before undertaking active orthodontic treatment.

Adolescent↗
PubMedDate not supplied

An unusual case of cervical root resorption.

Supraosseous extracanal invasive root resorption was diagnosed based on a radiographic survey, clinical examination, and microscopic examination of pulpal and exophytic soft-tissue specimens. Microscopic pulpal examination showed little or no evidence of significant inflammation. This resorptive process demonstrates extensive noncarious destruction of dentin without affecting pulpal health.

Adult↗