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Results for “Tooth Avulsion”

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At least 145 records · Page 8Linked to original sources
PubMed1990

[Trauma in the anterior tooth area of the youthful dentition from the surgical viewpoint].

A choice of treatments is available for traumatised anterior teeth. Apicoectomy combined with pin insertion is recommended for fractures of the middle or apical part of the tooth, or in cases of loss of the whole tooth single implants. In many cases which previously did not appear to be amenable to treatment it is today possible to preserve the damaged teeth at least over a longish period.

Child↗
PubMed2001

The complex case--unforeseeable findings and interdisciplinary treatment.

Orthodontic treatment is described in a case requiring an early treatment start due to disturbed eruption in the upper front, with displacement of an upper central incisor, tongue dysfunction and Class III tendency. The further course revealed additional problems which had been unforeseeable at treatment onset: ankylosis of the lower left first molar and dehiscences in the lower front. Treatment duration was very long due to treatment measures overlapping. The interdisciplinary treatment measures are outlined and the difficulties posed by contractual guidelines are pointed out.

Adolescent↗
PubMed2005

Evaluation of transversal slice imaging in the diagnosis of tooth displacement with special consideration of the upper canines.

AIM: The exact localization and analysis of displaced, retained or impacted teeth can rarely be achieved by common radiologic methods providing eccentric or occlusal images. The aim of this study was to evaluate transversal slice imaging (TSI) as a diagnostic alternative, keeping radiation exposure under consideration. MATERIAL AND METHODS: In a pilot study, we simulated seven different canine positions in a phantom head. Each tooth position was visualized by transversal slice imaging and compared by several observers independently and blinded to computer tomography (CT) serving as the gold standard. The clinical study included the retrospective analysis of TSI samples from 27 patients (mean age 13.7 yrs.) according to these criteria: 1. location of the canine crown and root, 2. recognition of the crown, 3. stage of root development, 4. root dilaceration, 5. periodontal ligament space, 6. ankylosis, 7. relationship to neighboring teeth, and 8. resorptions of neighboring teeth. The evaluations of canine position were compared to the results gained intraoperatively. RESULTS: In the transversal slice images taken from a phantom head, the observers' estimations of the canine position were identical in five cases (71.4%). At least four observers using TSI described identical tooth positions in 89% of patients. In 2.5%, no statement concerning tooth position was feasible. Crown recognition was possible in 75% of cases. Ankylosis, periodontal ligament space, root development, dilacerations and resorptions were not assessable in the majority of the cases. CONCLUSION: Transversal slice imaging can be recommended as a second plane projection in diagnosing tooth displacement, especially concerning oro-vestibular localization (effective radiation dose 0.003-0.012 mSv). However, as far as periodontal ligament space, resorptions and root morphology are concerned, this method has its limits.

Adolescent↗
PubMed2001

[Long-term outcome of dentoalveolar trauma in relation to post-traumatic instability].

PURPOSE: The aim of this retrospective study was to investigate the long-term outcomes of dental injuries. Subluxated and laterally luxated teeth were evaluated according to the findings of CO2 sensitivity, obliteration, pulpal sclerosis, and the duration of post-traumatic fixation of the injured teeth. MATERIAL AND METHODS: The data of 725 patients were analyzed retrospectively over a period of 14 years. Of these, 108 patients could be investigated for a long-term follow-up. Dental trauma was classified according to the degree of luxation (I-III). RESULTS: There was a significant correlation between the degree of luxation and the post-traumatic findings of CO2 sensitivity. There was no significant correlation between the degree of luxation and the post-traumatic findings of apical inflammation, pulpal sclerosis, and/or obliteration. Long-term fixation of injured teeth had no effect on the short- and long-term occurrence of pathologic processes at the root such as root resorption. CONCLUSION: The post-traumatic finding of CO2 sensitivity was related to the degree of luxation of the injured teeth. Apical inflammation, pulpal sclerosis, and obliteration were not related to the degree of luxation. The results suggest that long-term fixation of injured teeth has no negative effects on the long-term outcomes of subluxated and laterally luxated teeth.

Dental Pulp↗
PubMed1984

The effect of orthodontic extrusion on traumatically intruded teeth.

The management of traumatically intruded permanent incisors is controversial. Some authors suggest a decreased incidence of ankylosis in cases treated with orthodontic extrusion. The purpose of this study was to examine two common management techniques for traumatic intrusion, orthodontic extrusion, and observation for re-eruption. The four first premolars of three shepherd dogs were traumatically intruded with a mallet while a holding device was used to prevent tooth fracture. Five to 7 days following the injury, orthodontic force was applied unilaterally while the contralateral tooth served as the untreated control. To facilitate serial periapical radiography, x-ray jigs were fabricated for each animal and tantalum implants were placed in the bone distal to the permanent canine and first and second premolars. Observations included radiographic measurement of tooth movement, clinical estimates of tooth mobility, and radiographic and histologic assessment of root resorption, ankylosis, and periapical pathosis. The amount of traumatic intrusion varied from less than 0.5 to 4.1 mm. Following 11 to 13 weeks of force activation, 10 of 12 traumatized teeth showed clinical, radiographic, and histologic evidence of ankylosis irrespective of orthodontic treatment. Whereas the ankylosed teeth did not move with orthodontic forces, the teeth used for force application were orthodontically intruded 1.7 to 6.5 mm. When the injury to the tooth was severe, orthodontic extrusion had little effect on repositioning of the injured tooth but resulted in undesirable movement of the anchorage teeth. When the injury was less severe, orthodontic forces facilitated repositioning of the affected tooth.

Animals↗
PubMed1975

Radiologic features of ameloblastoma in Nigerians.

Radiology plays an important role in preoperative diagnosis and postoperative assessment of ameloblastoma. The postoperative appearances, including complications as well as radiologic features of recurrence, are discussed. The differential diagnosis of the unilocular lesion is difficult, and particularly noteworthy are the five cases of histologically proven adamantinoma whose radiographic appearance closely mimicked dentigerous cyst.

Adolescent↗
PubMed1976

Localization of objects in the anterior areas with a single Panorex radiograph.

Impacted objects in the anterior dental region can be localized in a labial-palatal direction with a single Panorex film. Clark's rule is applied to the two views of the anterior area obtained. The technique is verified by means of a dry skull with lead markers in known positions, and two clinical cases are reported.

Adult↗