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At least 271 records · Page 15Linked to original sources
PubMed1999

Class II, division 1, case with multiple treatment challenges.

This is a case report of a 23-year-old black woman with a skeletal Class II Division 1 malocclusion and an anterior open bite. The maxillary central incisor root was severely dilacerated, a maxillary lateral incisor and canine were transposed, a maxillary canine was impacted near the orbital rim, and a mandibular second premolar was congenitally missing. Selective extractions and attention to detail provided outstanding occlusal function and improved facial esthetics.

Adult↗
PubMed1995

Imaging of unerupted and displaced teeth by cross-sectional CT scans.

Thirty-six impacted and displaced teeth in 29 patients were examined radiographically by using orthopantomography (OPG) and computed tomography (CT). CT scans were obtained by using both a conventional program and a dental CT software program. The radiographic images obtained were compared for visualization of the internal position, inclination of unerupted teeth, and diagnosis of contact and doubtful or clearly visible resorption of adjacent roots. Both CT methods were superior to OPG. As far as the internal position and inclination of the impacted teeth, direct contact, and clearly visible resorption are concerned, the conventional CT program yielded the same information as the dental CT program. However, the exact proportional cross-sectional views obtained by dental CT yielded significantly (P < 0.01) better information about doubtful root resorption in adjacent teeth than did conventional CT.

Adolescent↗
PubMed1998

Concomitant hypohyperdontia: simultaneous occurrence of a mesiodens and agenesis of a maxillary lateral incisor.

A 13-year-old boy appeared for evaluation with a missing maxillary left lateral incisor. He also had an abnormally shaped tooth in the midline between his maxillary central incisors. This mesiodens had an incompletely developed root. The unusual association of these 2 anomalies is discussed as a possible transposition of the lateral incisor to the mesiodens position.

Adolescent↗
PubMed1993

Tissue reactions towards titanium implants inserted in growing jaws. A histological study in the pig.

In this investigation, the tissue reactions towards titanium implants inserted in growing jaws of pigs were studied by means of histology. At the age of 12 weeks, 5 test pigs each received 4 Brånemark System titanium implants (fixtures). The fixtures were inserted immediately after extraction of the mesial root of the second deciduous premolar (P2) and the deciduous canine (C) on one side of the mandible and the mesial root of the first deciduous premolar (P1) on the other side. The fourth implant was placed after extraction of the deciduous lateral incisor (L) on one side in the upper jaw. Furthermore, 1 pig in which no extractions or fixture installations were performed served as a control. All pigs were followed for 165 days with clinical, radiographic and biometric examinations, the results of which have been previously presented. In this study, 10-microns-thick ground sections were produced for histology after the jaws had been fixed by immersion in formalin and further processed and embedded in plastic resin. Six of the fixtures originally inserted were lost during the experimental period, and the remaining implants were found to be involved with mineralized bone to varying degrees. Regarding the fixture-to-teeth relationship, it was found that, in the premolar region of the lower jaw, the teeth were positioned superior to and buccally angulated in relation to the fixtures. In the upper jaw, the implants were positioned below the adjacent teeth but centrally in the alveolar process. Tooth germs adjacent to the fixture had a displaced eruption path, buccally or lingually to the fixture. If the bud developed in close contact with the fixture, a changed morphology of the germ could be observed.

Alveolar Process↗
PubMed1990

Extreme distal migration of a maxillary canine.

A case of extreme distal migration of the left maxillary canine is reported. The canine had erupted buccal to the contact area between the left second premolar and first molar. Past reports of similar ectopia are reviewed.

Adult↗
PubMed1996

Transmigration of permanent mandibular canines.

Transmigration is a rare occurrence relating to the movement of a mandibular canine across the mid-line of the mandible. Two cases are presented where patients referred for assessment of third molar problems subsequently revealed on radiological examination the asymptomatic phenomenon of transmigration. With dental panoramic radiography becoming more widespread among dental practitioners it is possible that more cases of transmigration will be observed.

Adult↗
PubMedDate not supplied

The presentations and management of transposed teeth.

Tooth transposition is an uncommon dental anomaly that nevertheless has important implications regarding treatment. This article describes six types of transposition, discussing the problems and possible solutions. It is important to ensure that the results of any treatments for transposition are both aesthetic and functional.

Child↗
PubMed2005

Eruption of teeth in the nose following trauma to the primary and permanent dentitions.

Oro-facial trauma is common and forms a large component of any maxillofacial service workload. Even minor trauma can result in significant oro-facial and dental injury. This report reinforces the importance of a careful dental history and thorough examination, particularly when teeth remain missing after initial inspection. Other anatomical sites should be considered to ensure they do not contain traumatically displaced teeth. These two case reports show the late presentation of incisor teeth in the nasal cavity following dentoalveolar trauma.

Adult↗