[Canine tooth transposition study on a group of patients orthodontically treated].

The dental transposition is an eruption anomaly, which occurs in this process towards the final stage and that represents the switching of 2 teeth that are next to each other. The tooth that most often is involved in transposition is the canine tooth, most frequently the upper one, which switches places either with the first premolar either with the lateral incisor. Under a clinical aspect, the transposition can be total (complete) or partial (incomplete), the latter reported both for crowns and roots.

[Evolution of the convexity of tegumental profile during mixed dentition].

More and more in the past years the orthodontist has started to be interested in having his patient at the end of the treatment not only with a perfect occlusion but also with a harmonious face. In this regard, a real asset is the facial profile angle (Milicescu), with a significant value in the treatment result by compensating other disorders or by being a disturbance factor even during a correct treatment. The information is still general, creating a harmonious or dys-harmonious face effect, relative independent of other angles.

[Periodontal reaction versus dental movement].

In orthodontics the relation between the force (natural or artificial) and the structures that must be modified or led towards a normal situation is in fact a complex equation would multiple aspects determined by the biological part. The orthodontic forces imply, both in action as in effect, all the elements of the dental system, meaning bones, teeth, periodontal tissue. On the other side, the structures of the dental system may help, limit ate, or even erase the action of the orthodontic forces.