![]() īroadway suggested that displacement of the crypt of the affected tooth is the cause. Sutton, has suggested that an abnormally strong force of eruption directed towards the crown drives the canine through the midline, which is a dense bone. īruszt, believed that the bud of the canine has risen in front of the incisors and its crown is displaced to the contralateral side during growth and eruption. Nodine reported that abnormal displacement of the dental lamina in the embryonic life is the cause of the displacement and non-eruption of the canines. Canine often rotates to the mesial, while the first premolar rotates to the distal and sometimes rotates to mesiopalatal. It appears that from the canine transposition of first upper premolar sometimes show on the transposition of canine eruption in the side of facial between the first and second premolars, especially if there is still deciduous canine, so that it affects deficiency of arch length. These teeth are often out of dental arch to the facial and palatal. The dental of upper canine is probably dental who is the most varied position in the composition of human teeth and important for the orthodontist who often must find their location and move it. Ĭanines are the most often dental in experiencing transposition. Unilateral tooth transpositions have been reported far more frequently than bilateral and left side becomes the victim more frequently than the right side Only one case of asymmetric transposition in both arches was found in the literature, involving maxillary canine and the first premolar on the right side and of the mandibular canine and the lateral incisor on the left side. According to most researchers, transposition is more frequent in women, in the maxilla, as a unilateral condition and in the left facial half. Tooth transpositions are observed at a rate of 14.29% in patients with Down’s syndrome and at a rate of 4.1% in cleft palate patients. ![]() Prevalence in syndromic patients is significantly higher. Thus, it was found 0.38% in Turkey, 0.13% in Saudi Arabia, 0.43% in India. ![]() Prevalence varies according to different authors. Figure 1: Transposition In the maxilla the canine-23-is transposed with the first premolar 24. ![]()
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