Fogorvosi szemle, 2003 (96. évfolyam, 1-6. szám)

2003-02-01 / 1. szám

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FOGORVOSI SZEMLE ■ 96. évf. 1. sz. 2003.

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Dr Budai M, Dr Ficzere I, Dr Gábris K, Dr Tarján I:

Frequency of Transposition at the Department of Pedodontics and Orthodontics of Semmelweis University in the Last Five Years and Treatment of Transposition

Tooth transposition is a rare but severe disturbance of tooth eruption. The maxillary canine and the premolar are the most commonly transposed teeth. The occurance of transposition in the mandible is very rare. The transposition may occur in combination with other anomalies, like aplasia (40%), peg-shaped lateral incisor (25%), decidous tooth retention (50%). The adjacent teeth exchange positions in the dental arch for genetic or traumatic reasons.

In the last five years orthopantomogramms of 2736 patients were analysed at the Department of Pedodontics and Orthodontics of Semmelweis University. Twelve transposition cases (0.43%) were found: 10 in the upper and 2 in the lower dental arch. Only one case was bilateral transposition.

Nine patients were treated with fixed appliance. In one of these cases the transposed tooth was extracted and two patients are being observed. The methods of treatment are in accordance with the international guide-lines.

Key words: transposition, etiology and frequency of transposition, treatment of transposition