[A CASE OF "SUBMERGED" DECIDUOUS TOOTH].
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Supernumerary teeth in the maxillary midline can present both esthetic and pathologic concerns that can be difficult to solve. The frequency with which supernumerary teeth occur justifies an oral radiographic survey for preschool children as early detection is most important, if such complications are to be avoided or minimized. The case presented in this report required both surgical and innovative orthodontic therapy to bring an unerupted, impacted maxillary central incisor into proper alignment. The tooth was moved into the dental arch and injury to the root structure and surrounding oral tissues was avoided by using a combination of conservative surgical and orthodontic therapy.
A case report is presented about a patient with typical Menière's disease of the left inner ear. The surgical therapy by means of saccotomy brought only slight improvement. After consultation of the maxillofacial surgeon an impact upper left wisdom tooth was discovered and surgically treated. since this time the symptoms of the Menière's disease have disappeared. Possible connections concerning the localization of the wisdom tooth and the neighbouring anatomical structures are discussed and give a possible clue to a new form of therapy.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
OBJECTIVE: To establish a new technique for three-dimensional surface reconstruction of teeth (dental surface reconstruction), and apply it to investigate impacted teeth in bone before operation. METHODS: On the basis of three-dimensional surface reconstruction of teeth and jaws, the dental surface reconstruction is obtained with the technique of shaded surface display (SSD), making transparent bone around. This technique is applied to investigate 9 cases of supernumerary and impacted teeth. RESULTS: Dental surface reconstruction image can present the dental surface image including crown, root, neck and root bifurcation in three-dimensional way, without presenting the image of other tissue around. In 4 cases, the abnormal configuration, labial or palatal location, and relation with dentition in anterior maxilla of 5 supernumerary were shown. In 1 case, the shape, location, eruption orientation and the angle of orthodontic distraction of 1 impacted permanent canine were displayed. In 3 cases, the shape, location, and extraction resistance of 6 impacted wisdom teeth were revealed. In 1 case, the configuration, distance to adjacent molar of 1 impacted wisdom tooth, which is a transposition tooth in maxillary sinus, were also demonstrated. CONCLUSION: The dental surface reconstruction is a new technique to display three-dimensional surface configuration of teeth. This technique can be applied to examine impacted and supernumerary teeth before surgical and orthodontic treatment.