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Biomedical subjects

Yehoshua Shapira

Publications and source records attributed to Yehoshua Shapira.

4 recordsLinked to original sources

Unusual intraosseous transmigration of a palatally impacted canine.

Intraosseous migration of impacted teeth across the midline to the opposite side of the jaw is a rare dental anomaly of unknown etiology. Transmigration of an impacted mandibular canine through the symphysis to the contralateral side of the arch has been documented. Transmigration of an impacted maxillary canine across the midpalatal suture to the opposite side of the maxilla has not been previously observed and is reported here for the first time.

Adolescent↗

Intrabony migration of impacted teeth.

Intrabony migration of impacted teeth is a rare dental anomaly, which occurs only in the permanent dentition of the lower jaw. The teeth involved in this phenomenon are the mandibular lateral incisor, canine, and second premolar. Migration of the lateral incisor is usually in a distal direction, resulting in transposition with the canine. Migration of the canine is most frequently in a mesial direction, resulting in transmigration across the mandibular symphysis to the opposite side of the dental arch. The second premolar most often migrates distally, sometimes past the gonial angle and as far as the coronoid process. Surgical and orthodontic treatment options are presented for the three intrabony migrating teeth.

Bicuspid↗

Early detection and prevention of mandibular tooth transposition.

Distal migration of the mandibular permanent lateral incisor happens rarely and it can be discovered radiographically in the early mixed dentition. If unattended, the tooth may erupt ectopically, usually distal to its normal anatomical position and occlusal to the developing first premolar, and it can become transposed with the permanent canine. Early detection and immediate interceptive removal of the retained deciduous lateral incisor and canine, followed by uprighting the ectopic lateral incisor to its normal anatomical position in the arch, will intercept the problem and prevent the developing transposition.

Bicuspid↗